qid int64 1 74.7M | question stringlengths 12 33.8k | date stringlengths 10 10 | metadata list | response_j stringlengths 0 115k | response_k stringlengths 2 98.3k |
|---|---|---|---|---|---|
16,196,588 | Is it a reasonable/responsible idea to store a database result set in the user's session, as opposed to loading it fresh from the database on every page load? I am aware of the availability of caching the generated HTML code in a cache file on the server but that has too many convenience issues in my opinion.
For example, on a shopping page, the brands tab in the main nav has a drop down menu that lists all the brands that currently have products on the site. The query is optimized but it would still have to run at every page load. Instead of doing that I would like to save the result set in the user's session, thus only loading the brands once per session.
Alternatively, I could generate the HTML code for the subnav and store it in a cache file on the server. If the idea of storing the array in the session isn't beneficial to the server's performance, I might be able to see past the convenience issues.
Thanks for all the help! | 2013/04/24 | [
"https://Stackoverflow.com/questions/16196588",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/330098/"
] | I would suggest go for [Memcached](http://memcached.org/ "Memcached") in this case.
Instructions for setup & configuration can be found here: <https://www.digitalocean.com/community/articles/how-to-install-and-use-memcache-on-ubuntu-12-04> (Please note this one is for Ubuntu but it will give you good idea) | Others adviced to use Memcached. It adds complexity and requires RAM (so it makes MySQL MUCH MUCH MUCH slower if they run on the same server). It's possible that it's the best solution for you, but since I don't know any solution which is "good for everyone", and since I don't know your workload, I just suggest alternatives.
Yes, MySQL query cache has many issues. But it may be good for you.
MEMORY tables could be a good solution too, if you don't have too much stuff to cache.
Storing a cache in session data is probably worse than not caching at all, because data are duplicate for every user, and cleanup occurse only when sessions expire. Don't waste your memory that way. |
605,440 | I am using a aix box over a network.
I am using putty to work on the box. The problem is its too slow,But we do have a high speed network.
Is there any terminal program other than putty that can help me work comfortably..by doing some buffering or other mechanism by which i wont feel like i m working on a dialup.
Thanks. | 2009/03/03 | [
"https://Stackoverflow.com/questions/605440",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/-1/"
] | PuTTY is perfectly fast - I've never had any problems with it.
Have you established where the bottleneck is? What's the exact setup of the network between your client and the server? Is perhaps the AIX server too heavily loaded? | I have the same problem depending on where I am. Lately, at home, I'm stuck with my horribly slow back up connection while my primary ISP goes through 'growing pains'
Its been a while since I have used putty, does it have an option for gzip compression? If not, I recommend using the official OpenSSH client (but it can be painful to install on Windows).
I typically use ssh -C (compression) user@host, the speed up is almost 30%. I feel your pain, it sucks when typing and every character takes ~3 seconds to appear. |
12,952 | I really like how smoothly XFCE works and prefer it to GNOME, so I would like to weigh it up a bit. ;) Is there a way to play sounds on certain system events? The most useful that comes to my mind is after finishing copying, but maybe also on deleting a file or in other circumstances like there are sounds in Mac OS X or Windows? | 2010/11/13 | [
"https://askubuntu.com/questions/12952",
"https://askubuntu.com",
"https://askubuntu.com/users/-1/"
] | Check also
Applications → Settings → Xfce 4 Settings Manager → Appearance → Settings → Event sounds → [x] Enable event sounds
for some kind of sound support | The last time i checked xfce did not support system sounds. This might prove useful
<http://ubuntuforums.org/showthread.php?t=853173> |
12,952 | I really like how smoothly XFCE works and prefer it to GNOME, so I would like to weigh it up a bit. ;) Is there a way to play sounds on certain system events? The most useful that comes to my mind is after finishing copying, but maybe also on deleting a file or in other circumstances like there are sounds in Mac OS X or Windows? | 2010/11/13 | [
"https://askubuntu.com/questions/12952",
"https://askubuntu.com",
"https://askubuntu.com/users/-1/"
] | Check also
Applications → Settings → Xfce 4 Settings Manager → Appearance → Settings → Event sounds → [x] Enable event sounds
for some kind of sound support | @tinhead: yeah, great link and another in the thread you gave:
<http://ubuntuforums.org/showthread.php?p=3907604#post3907604>
Running /usr/bin/play (#apt-get install sox) is a way to go - just like Orage uses it for alarms (on a sidenote I was wondering why orage doesn't specify sox as its dependency). There are some sound sets in the software repository
apt-cache search 'sound'
perhaps with | grep -i theme |
20,360 | I'm developing a WordPress theme framework. I want organize CSS for each section into separate files for the following reasons.
1. Developers can easily deregister styles by parent theme and load their own styles.
2. Easy to maintain.
3. I can load only the required styles based on the options selected by the user.
Disadvantages
Extra http requests => more load on the server.
This disadvantage can be taken care by combining all the CSS files before they are served to the user using plugins like wp-minify.
But, will this combining process out weigh the above advantages. | 2011/06/18 | [
"https://wordpress.stackexchange.com/questions/20360",
"https://wordpress.stackexchange.com",
"https://wordpress.stackexchange.com/users/2193/"
] | From <http://headjs.com/> :
There is a common misbelief that a single combined script performs best. Wrong:
* latest browsers and Head JS can load scripts in parallel. loading 3 parts in parallel instead of as a single chunk is usually faster.
* iPhone 3.x cannot cache files larger than 15kb and in iPhone 4 the limit is 25kb. And this is the size before gzipping. if you care about iPhones you should respect these limits
(i dont know if it means .css and .js or only .js) | Thank you edelwater and TheDeadMedic for you answers.
I think I will use the WordPress file system to save the files to uploads directory.
<http://ottopress.com/2011/tutorial-using-the-wp_filesystem/>
I have to ask for ftp login on some wordpress installs, I think I can handle that without loosing the AJAX options page using page overlay like wordpress uploader. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | **It isn't a simple reversal, because money actually changed hands when the transfer was made.**
When the transfer was made 50,000 Euros was credited to a UK bank, and some number of kronor was debited to your Swedish bank. When the transaction was reversed 50,000 Euros were transferred back to the Swedish bank. Those Euros are now worth fewer kronor, so your Swedish bank ends up with fewer kronor in its coffers.
There would be only two ways of fixing this. Either the UK bank sends more than 50,000 Euros, or the Swedish bank tops up your account. Either costs one of them something, and banks are not going to pay you for a mistake you made. | What the bank 'should' have done is a question of law, but I will point out that the reason for the rejection was not the bank's error, it was yours / the payee's [which, in the bank's eyes, is still kind of your error].
Consider from the bank's point of view:
(1) You release 50k SEK from your account;
(2) The bank, seeing it is headed to a EUR account, converts it to EUR for you, at their available rate [of course, they will take a cut off of the conversion];
(3) The bank sends the EUR off to the account you requested;
(4) The EUR is rejected due to invalid account;
(5) The bank needs to convert the EUR *back* to SEK for you [again, they do likely take a cut], at a conversion rate that happens to give you 633 less SEK than what you started with.
If the bank did as you ask, and used the same rate to convert your refund in step 5 as your original conversion in step 2, they might have lost money. ie: if the SEK had strengthened in between step 2 & step 5, then it would have cost the bank more EUR, out of their own pocket, to get you your SEK back. They are not a charity, so they chose to charge you the regular conversion rates in both steps.
Whether they *should* do as you ask is probably a question of law; whether they *might* do as you ask is probably a question of customer relationship. That is, if you were worth 633 SEK to them, they might swallow their pride and give you your original value back, if you asked nicely. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | **It isn't a simple reversal, because money actually changed hands when the transfer was made.**
When the transfer was made 50,000 Euros was credited to a UK bank, and some number of kronor was debited to your Swedish bank. When the transaction was reversed 50,000 Euros were transferred back to the Swedish bank. Those Euros are now worth fewer kronor, so your Swedish bank ends up with fewer kronor in its coffers.
There would be only two ways of fixing this. Either the UK bank sends more than 50,000 Euros, or the Swedish bank tops up your account. Either costs one of them something, and banks are not going to pay you for a mistake you made. | Most likely this will be an expensive lesson to learn. However, I believe there still is a chance to recover some of the difference, since your wording of "*my* Swedish bank" and "*my* UK bank" implies you have a relationship with both banks.
If your Swedish bank converted the funds to Euros first, and then attempted the transfer, then your Swedish bank made a profit when converting it back. If the UK bank received SEK and did the conversion, then the UK bank made a profit by not returning the full amount. Either way, you may ask the bank that profited off of you if they would be willing to make you whole again. If it's the UK bank that needs to do it, I'd guess they would be more willing upon receiving the transfer again properly.
Good luck, and please let us know if you do end up getting some or all of it refunded. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | **It isn't a simple reversal, because money actually changed hands when the transfer was made.**
When the transfer was made 50,000 Euros was credited to a UK bank, and some number of kronor was debited to your Swedish bank. When the transaction was reversed 50,000 Euros were transferred back to the Swedish bank. Those Euros are now worth fewer kronor, so your Swedish bank ends up with fewer kronor in its coffers.
There would be only two ways of fixing this. Either the UK bank sends more than 50,000 Euros, or the Swedish bank tops up your account. Either costs one of them something, and banks are not going to pay you for a mistake you made. | The other answers attribute the loss due to changes in conversion rates. For me the change seems to be more due to the [buy/sell rate](https://en.wikipedia.org/wiki/Exchange_rate#Exchange_rate_classification) difference. Every FOREX agency/ bank sets the rates different on purpose so that they make profit on each transacation. I checked a few online websites( transferwise, revolut) and your cheapest conversion fee is approximately 150 Euro for such a large transaction. I assume banks don't do this as cheap as these websites and your one-way conversion fee was indeed around 300 Euro which probably made you a loss of this 633 Euro. Since SEPA transfer in EURO is completely free, this complete fee of 633 Euro was pocketed by your Swedish bank. Depending on how valuable customer you are, they could compensate you somehow although it was your mistake.
In a comment you mention, you need GBP. Then why are you even converting to EURO? Every conversion involves fees and for such huge amount it could easily be another 300 Euro fees when converting to GBP again. Unless this is throw away money for you, **DON'T CONVERT MULTIPLE TIMES!!!** I suggest finding an alternative if your banks don't support SEK->GBP direct conversion. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | Most likely this will be an expensive lesson to learn. However, I believe there still is a chance to recover some of the difference, since your wording of "*my* Swedish bank" and "*my* UK bank" implies you have a relationship with both banks.
If your Swedish bank converted the funds to Euros first, and then attempted the transfer, then your Swedish bank made a profit when converting it back. If the UK bank received SEK and did the conversion, then the UK bank made a profit by not returning the full amount. Either way, you may ask the bank that profited off of you if they would be willing to make you whole again. If it's the UK bank that needs to do it, I'd guess they would be more willing upon receiving the transfer again properly.
Good luck, and please let us know if you do end up getting some or all of it refunded. | What the bank 'should' have done is a question of law, but I will point out that the reason for the rejection was not the bank's error, it was yours / the payee's [which, in the bank's eyes, is still kind of your error].
Consider from the bank's point of view:
(1) You release 50k SEK from your account;
(2) The bank, seeing it is headed to a EUR account, converts it to EUR for you, at their available rate [of course, they will take a cut off of the conversion];
(3) The bank sends the EUR off to the account you requested;
(4) The EUR is rejected due to invalid account;
(5) The bank needs to convert the EUR *back* to SEK for you [again, they do likely take a cut], at a conversion rate that happens to give you 633 less SEK than what you started with.
If the bank did as you ask, and used the same rate to convert your refund in step 5 as your original conversion in step 2, they might have lost money. ie: if the SEK had strengthened in between step 2 & step 5, then it would have cost the bank more EUR, out of their own pocket, to get you your SEK back. They are not a charity, so they chose to charge you the regular conversion rates in both steps.
Whether they *should* do as you ask is probably a question of law; whether they *might* do as you ask is probably a question of customer relationship. That is, if you were worth 633 SEK to them, they might swallow their pride and give you your original value back, if you asked nicely. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | What the bank 'should' have done is a question of law, but I will point out that the reason for the rejection was not the bank's error, it was yours / the payee's [which, in the bank's eyes, is still kind of your error].
Consider from the bank's point of view:
(1) You release 50k SEK from your account;
(2) The bank, seeing it is headed to a EUR account, converts it to EUR for you, at their available rate [of course, they will take a cut off of the conversion];
(3) The bank sends the EUR off to the account you requested;
(4) The EUR is rejected due to invalid account;
(5) The bank needs to convert the EUR *back* to SEK for you [again, they do likely take a cut], at a conversion rate that happens to give you 633 less SEK than what you started with.
If the bank did as you ask, and used the same rate to convert your refund in step 5 as your original conversion in step 2, they might have lost money. ie: if the SEK had strengthened in between step 2 & step 5, then it would have cost the bank more EUR, out of their own pocket, to get you your SEK back. They are not a charity, so they chose to charge you the regular conversion rates in both steps.
Whether they *should* do as you ask is probably a question of law; whether they *might* do as you ask is probably a question of customer relationship. That is, if you were worth 633 SEK to them, they might swallow their pride and give you your original value back, if you asked nicely. | The other answers attribute the loss due to changes in conversion rates. For me the change seems to be more due to the [buy/sell rate](https://en.wikipedia.org/wiki/Exchange_rate#Exchange_rate_classification) difference. Every FOREX agency/ bank sets the rates different on purpose so that they make profit on each transacation. I checked a few online websites( transferwise, revolut) and your cheapest conversion fee is approximately 150 Euro for such a large transaction. I assume banks don't do this as cheap as these websites and your one-way conversion fee was indeed around 300 Euro which probably made you a loss of this 633 Euro. Since SEPA transfer in EURO is completely free, this complete fee of 633 Euro was pocketed by your Swedish bank. Depending on how valuable customer you are, they could compensate you somehow although it was your mistake.
In a comment you mention, you need GBP. Then why are you even converting to EURO? Every conversion involves fees and for such huge amount it could easily be another 300 Euro fees when converting to GBP again. Unless this is throw away money for you, **DON'T CONVERT MULTIPLE TIMES!!!** I suggest finding an alternative if your banks don't support SEK->GBP direct conversion. |
102,400 | I asked my Swedish bank to transfer to my UK bank 50,000 euros through a SEPA payment. Unfortunately, the IBAN and BIC were old and no longer in use and the UK bank returned the money the same day, i.e. the transaction failed. The 50,000 euros was put back into my account after conversion to Swedish kronor (SEK).
However, the amount refunded was signficantly less (about 633 euros) owing to a different exchange rate being used for the conversion EUR=>SEK.
Should the Swedish bank not have used the same rate for the refund? In other words, should not the sending of the wrong codes have simply resulted in a reversal or cancellation of the transaction? | 2018/11/27 | [
"https://money.stackexchange.com/questions/102400",
"https://money.stackexchange.com",
"https://money.stackexchange.com/users/79140/"
] | Most likely this will be an expensive lesson to learn. However, I believe there still is a chance to recover some of the difference, since your wording of "*my* Swedish bank" and "*my* UK bank" implies you have a relationship with both banks.
If your Swedish bank converted the funds to Euros first, and then attempted the transfer, then your Swedish bank made a profit when converting it back. If the UK bank received SEK and did the conversion, then the UK bank made a profit by not returning the full amount. Either way, you may ask the bank that profited off of you if they would be willing to make you whole again. If it's the UK bank that needs to do it, I'd guess they would be more willing upon receiving the transfer again properly.
Good luck, and please let us know if you do end up getting some or all of it refunded. | The other answers attribute the loss due to changes in conversion rates. For me the change seems to be more due to the [buy/sell rate](https://en.wikipedia.org/wiki/Exchange_rate#Exchange_rate_classification) difference. Every FOREX agency/ bank sets the rates different on purpose so that they make profit on each transacation. I checked a few online websites( transferwise, revolut) and your cheapest conversion fee is approximately 150 Euro for such a large transaction. I assume banks don't do this as cheap as these websites and your one-way conversion fee was indeed around 300 Euro which probably made you a loss of this 633 Euro. Since SEPA transfer in EURO is completely free, this complete fee of 633 Euro was pocketed by your Swedish bank. Depending on how valuable customer you are, they could compensate you somehow although it was your mistake.
In a comment you mention, you need GBP. Then why are you even converting to EURO? Every conversion involves fees and for such huge amount it could easily be another 300 Euro fees when converting to GBP again. Unless this is throw away money for you, **DON'T CONVERT MULTIPLE TIMES!!!** I suggest finding an alternative if your banks don't support SEK->GBP direct conversion. |
10,387,349 | Host machine was ported from 11.10 to 12.04 LTS (Xubuntu)
Virtualbox image is win7 x64
With upgrade /dev/vboxdrv was missing, so within synaptics I reinstalled:
* virtualbox (4.1.12dsfg-2 not OSE)
* virtualbox-qt 4.1.12dsfg
* virtualbox-dkms 4.1.12dsfg
Then it works again but my windows is badly crashed. Once started and desktop icons pops out it's really slow and crash (network icon is also blocked)
I reinstalled guest additions, but does not make any difference.
Nothing is serious because I still have available snapshots.
I'm asking for advices, like for example how do I clean reinstall (clear parameters) vbox ?
Is there any workaround, or do I need to wait fresh 12.04LTS updates to fix this pbm by magic ? | 2012/04/30 | [
"https://Stackoverflow.com/questions/10387349",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1366230/"
] | I can confirm this bug on two of my Ubuntu 12.04 machines (i7 Desktop, Samsung Dual Core Laptop):
All my Windows (Win7, WinServer2003,WinServer 2008) 64bit guest machines which were working under Ubuntu 11.10 behave the same way after upgrading / reinstalling to Ubuntu Precise:
During guest bootup or shortly after bootup (sometimes I can even access the guest's desktop for a moment) the complete system host + guest freezes completly.
The Vbox.log doesnt contain any hint. Even a fresh install of Ubuntu Precise has the same error (with the same guest machines).
I have not found any combination of guest settings which prevents this freeze yet. Even using the OSE edition of Virtualbox 4.1.12-UbuntuR7724S has the same error. | I can't be sure that I was having the same problem, but I also just upgraded from ubuntu 11.10 to 12.04 and attempting to boot my virtual machine (xp 32bit) would cause the host to freeze.
The fix was to do the following:
* Enable absolute pointing device (almost certainly wasnt this that fixed it but hey ho!)
* Enable VT-x/AMD-V acceleration and nested paging (found under settings->System->Acceleration)
* Disable video acceleration (again dont think it was this but I don't fancy fiddling now it works)
Hope this works for you too. |
10,387,349 | Host machine was ported from 11.10 to 12.04 LTS (Xubuntu)
Virtualbox image is win7 x64
With upgrade /dev/vboxdrv was missing, so within synaptics I reinstalled:
* virtualbox (4.1.12dsfg-2 not OSE)
* virtualbox-qt 4.1.12dsfg
* virtualbox-dkms 4.1.12dsfg
Then it works again but my windows is badly crashed. Once started and desktop icons pops out it's really slow and crash (network icon is also blocked)
I reinstalled guest additions, but does not make any difference.
Nothing is serious because I still have available snapshots.
I'm asking for advices, like for example how do I clean reinstall (clear parameters) vbox ?
Is there any workaround, or do I need to wait fresh 12.04LTS updates to fix this pbm by magic ? | 2012/04/30 | [
"https://Stackoverflow.com/questions/10387349",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1366230/"
] | I can confirm this bug on two of my Ubuntu 12.04 machines (i7 Desktop, Samsung Dual Core Laptop):
All my Windows (Win7, WinServer2003,WinServer 2008) 64bit guest machines which were working under Ubuntu 11.10 behave the same way after upgrading / reinstalling to Ubuntu Precise:
During guest bootup or shortly after bootup (sometimes I can even access the guest's desktop for a moment) the complete system host + guest freezes completly.
The Vbox.log doesnt contain any hint. Even a fresh install of Ubuntu Precise has the same error (with the same guest machines).
I have not found any combination of guest settings which prevents this freeze yet. Even using the OSE edition of Virtualbox 4.1.12-UbuntuR7724S has the same error. | The [probably-related VirtualBox bug ticket](https://www.virtualbox.org/ticket/10528) says it is fixed in VirtualBox source, and also details a workaround via grub.
The Debian bug is [here](http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655202).
Hopefully the patch will be applied to Ubuntu-12.04 .
(This answer is also at: <https://askubuntu.com/questions/130726/win-7-virtual-box-vm-fails-to-start-after-upgrade-to-12-04> ) |
10,387,349 | Host machine was ported from 11.10 to 12.04 LTS (Xubuntu)
Virtualbox image is win7 x64
With upgrade /dev/vboxdrv was missing, so within synaptics I reinstalled:
* virtualbox (4.1.12dsfg-2 not OSE)
* virtualbox-qt 4.1.12dsfg
* virtualbox-dkms 4.1.12dsfg
Then it works again but my windows is badly crashed. Once started and desktop icons pops out it's really slow and crash (network icon is also blocked)
I reinstalled guest additions, but does not make any difference.
Nothing is serious because I still have available snapshots.
I'm asking for advices, like for example how do I clean reinstall (clear parameters) vbox ?
Is there any workaround, or do I need to wait fresh 12.04LTS updates to fix this pbm by magic ? | 2012/04/30 | [
"https://Stackoverflow.com/questions/10387349",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1366230/"
] | The [probably-related VirtualBox bug ticket](https://www.virtualbox.org/ticket/10528) says it is fixed in VirtualBox source, and also details a workaround via grub.
The Debian bug is [here](http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655202).
Hopefully the patch will be applied to Ubuntu-12.04 .
(This answer is also at: <https://askubuntu.com/questions/130726/win-7-virtual-box-vm-fails-to-start-after-upgrade-to-12-04> ) | I can't be sure that I was having the same problem, but I also just upgraded from ubuntu 11.10 to 12.04 and attempting to boot my virtual machine (xp 32bit) would cause the host to freeze.
The fix was to do the following:
* Enable absolute pointing device (almost certainly wasnt this that fixed it but hey ho!)
* Enable VT-x/AMD-V acceleration and nested paging (found under settings->System->Acceleration)
* Disable video acceleration (again dont think it was this but I don't fancy fiddling now it works)
Hope this works for you too. |
8,556,878 | I have never worked with git before, and Im confused as to where to enter the "install the server" part to get this working..
<http://addyosmani.com/blog/autosave-changes-chrome-dev-tools/>
Details in steps would be very helpful! Thanks!! | 2011/12/19 | [
"https://Stackoverflow.com/questions/8556878",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/765484/"
] | On the terminal / console / cmd / command-line of your OS, it says so in the article:
>
> To install, simply run the following from the command-line/console:
>
>
>
This has nothing to do with git. This is how you enter commands and git is just another command. | If it says "command not found" then git is not installed on your Mac.
Install it from: [Git Download Site](http://git-scm.com/)
and then try the instructions again. |
197,900 | Whenever I format my computer, I usually just copy/paste all the .ttf and .fon files into the `Fonts` system folder.
I can't be sure 100%, but I think that after I did that, Firefox stopped displaying some website's fonts correctly, and I mean the usual default ones, like Arial, Helvetica, etc.
I don't have this problem in any other program, other than Firefox.
Here is a screenshot of what [Digg](http://en.wikipedia.org/wiki/Digg) looks on my laptop right now:
[](https://i.stack.imgur.com/Zph9q.png)
It looks weird, the font is messed up somehow.
How do I fix it? I'm on Windows 7, Firefox 3.6.10. | 2010/10/10 | [
"https://superuser.com/questions/197900",
"https://superuser.com",
"https://superuser.com/users/50544/"
] | I was just struggling with the same problem (albeit with Google Chrome) and stumbled upon this topic. Because I'm using a PC at work, I don't have the privileges to make registry edits. I found another workaround however, which probably only works on Chrome, but at least it fixed the problem for me. So although it's not about Firefox, I still want to share it, in case somebody else ends up in this topic as well.
1. Open Google Chrome
2. Open a new tab and enter the following in the address bar:
>
> chrome://flags/#disable-direct-write
>
>
>
3. Click "enable" to enable this switch, disabling the use of Microsoft DirectWrite by Google Chrome.
4. Close and re-open Chrome.
*Source & credits: <https://youtu.be/cHHBnHRcOjQ>* | Go to your firefox preferences, under the "Content" tab there should be a "Default Font" combobox. Try switching the setting to one of the usual Microsoft fonts. If not, it is possible that you simply don't have the Microsoft fonts installed. Apparently, you can get some of the core fonts here: <http://web.nickshanks.com/fonts/microsoft-core-web-fonts> |
131,583 | I just installed Call of Duty 4 and when I try to run the single player mode nothing happens. I just see a quick flicker on the desktop but the game doesn't launch. When I try to run it again, it gives me this message:
>
> It appears that cod4 did not quit properly the last time it ran. Do you want to run the game in safe mode?
>
>
>
Multiplayer seems to work fine and when I try to switch to single player from the multiplayer menu the same thing happens, it just goes back to my desktop and that message shows up again | 2013/09/21 | [
"https://gaming.stackexchange.com/questions/131583",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/55672/"
] | I had this issue on Windows Vista (yep) and I assume its on Win 7 too. Plug something into the microphone audio jack. | It can be several options. First try to run the game as an administrator and see what happens. Also, if the game is not original you would need a good patch. And finally, uninstall and re-install the game. Sometimes the patches for multiplayer give these kind of problems. Back in the day, with the game beat couldn't play single player anymore. |
131,583 | I just installed Call of Duty 4 and when I try to run the single player mode nothing happens. I just see a quick flicker on the desktop but the game doesn't launch. When I try to run it again, it gives me this message:
>
> It appears that cod4 did not quit properly the last time it ran. Do you want to run the game in safe mode?
>
>
>
Multiplayer seems to work fine and when I try to switch to single player from the multiplayer menu the same thing happens, it just goes back to my desktop and that message shows up again | 2013/09/21 | [
"https://gaming.stackexchange.com/questions/131583",
"https://gaming.stackexchange.com",
"https://gaming.stackexchange.com/users/55672/"
] | The following 2 actions are known to solve most issues with the game crashing:
* Enable stereo mix
* Plug in an headset/mic
Sources:
<http://steamcommunity.com/app/7940/discussions/0/618453594765419915/>
<http://steamcommunity.com/app/7940/discussions/0/864956555036760746/> | It can be several options. First try to run the game as an administrator and see what happens. Also, if the game is not original you would need a good patch. And finally, uninstall and re-install the game. Sometimes the patches for multiplayer give these kind of problems. Back in the day, with the game beat couldn't play single player anymore. |
10,132,936 | I want to draw a dynamic graph with standard HTML/Javascript/JQuery (not HTML5).
The nodes are divs with certain contents, and between them I need lines. At least horizontal and vertical. It's possible to add and remove nodes dynamically.
It would be nice if the divs are draggable too, but is not necessary.
Can this be done with standard HTML, maybe with help of some JQuery library?
I only find negative answers on this, like:
<http://www.coderanch.com/t/518805/open-source/do-generate-dynamic-graph-html>
Thanks in advance.
P.D. Seems to be a typic use case for Flash. I can't use HTML5 because it has to run everywhere. And I don't see a reason to use something like SVG instead of Flash. | 2012/04/12 | [
"https://Stackoverflow.com/questions/10132936",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/930450/"
] | This would probably be easy to make with [JointJS](http://www.jointjs.com/ "JavaScript diagramming library"). It uses Raphael for handling the graphics, which is based on SVG but also support VML for IE. JointJS claims to support the following browsers: Firefox 3.0+, Safari 3.0+, Opera 9.5+, Google Chrome 4+ and Internet Explorer 6.0+. | JQplot is great: <http://www.jqplot.com/>
It has a very "Google analytics" feel to it right out of the box.
It's built on jQuery which works great for what you've described. |
10,132,936 | I want to draw a dynamic graph with standard HTML/Javascript/JQuery (not HTML5).
The nodes are divs with certain contents, and between them I need lines. At least horizontal and vertical. It's possible to add and remove nodes dynamically.
It would be nice if the divs are draggable too, but is not necessary.
Can this be done with standard HTML, maybe with help of some JQuery library?
I only find negative answers on this, like:
<http://www.coderanch.com/t/518805/open-source/do-generate-dynamic-graph-html>
Thanks in advance.
P.D. Seems to be a typic use case for Flash. I can't use HTML5 because it has to run everywhere. And I don't see a reason to use something like SVG instead of Flash. | 2012/04/12 | [
"https://Stackoverflow.com/questions/10132936",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/930450/"
] | This would probably be easy to make with [JointJS](http://www.jointjs.com/ "JavaScript diagramming library"). It uses Raphael for handling the graphics, which is based on SVG but also support VML for IE. JointJS claims to support the following browsers: Firefox 3.0+, Safari 3.0+, Opera 9.5+, Google Chrome 4+ and Internet Explorer 6.0+. | You can use Google Charts, Google Graph API [Examples.](https://google-developers.appspot.com/chart/interactive/docs/gallery) |
10,132,936 | I want to draw a dynamic graph with standard HTML/Javascript/JQuery (not HTML5).
The nodes are divs with certain contents, and between them I need lines. At least horizontal and vertical. It's possible to add and remove nodes dynamically.
It would be nice if the divs are draggable too, but is not necessary.
Can this be done with standard HTML, maybe with help of some JQuery library?
I only find negative answers on this, like:
<http://www.coderanch.com/t/518805/open-source/do-generate-dynamic-graph-html>
Thanks in advance.
P.D. Seems to be a typic use case for Flash. I can't use HTML5 because it has to run everywhere. And I don't see a reason to use something like SVG instead of Flash. | 2012/04/12 | [
"https://Stackoverflow.com/questions/10132936",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/930450/"
] | JQplot is great: <http://www.jqplot.com/>
It has a very "Google analytics" feel to it right out of the box.
It's built on jQuery which works great for what you've described. | You can use Google Charts, Google Graph API [Examples.](https://google-developers.appspot.com/chart/interactive/docs/gallery) |
33,487,793 | Where do I find the console output for tvos javascript in xcode or the sim?
The answer is probably trivial, but I have not been able to figure it out.
Thanks for your patience. | 2015/11/02 | [
"https://Stackoverflow.com/questions/33487793",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/5517618/"
] | To see a full console (for things like console.log) for JavaScript, open up Safari and after you've built your app inside XCode, click Develop > Simulator and you'll be able to see a console of your app. | You can see the output at the bottom of Xcode. Click on the triangle at the left side, if it is hidden
[](https://i.stack.imgur.com/SdXhR.png) |
382,611 | Whenever I connect my iPhone to my Mac (Lion), the Image capture app starts.
How do I stop this?
Image capture doesn't have any preferences. | 2012/01/26 | [
"https://superuser.com/questions/382611",
"https://superuser.com",
"https://superuser.com/users/13727/"
] | Found it!
In Image Capture there's a section on the bottom-left. Make sure the iPhone is selected, otherwise the bottom settings will not appear.
 | Use iPhoto's preferences (General tab, the "Connecting camera opens" setting).
 |
8,631,629 | I would like to list the directory that my current website will be in as a browsable tree (similar to the way a web browser lists a directory if there are no index files present) - basically, an FTP listing. However, I can't use PHP because the server I'm developing for does not support PHP (or any similar tools as far as I'm aware). I do have access to JQuery, and Java and Flash applets, though.
My question is, first of all, is that even possible? I know I can make a link that will make the browser list the directory for me, but I want this embedded within my own website (i.e. inside a div). I would prefer doing it all with just JQuery/Javascript. I'm also fairy fluent in Java, but I don't know if I can list directories in an unsigned applet. | 2011/12/25 | [
"https://Stackoverflow.com/questions/8631629",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/838060/"
] | I don't understand your problem completely, I see only one possible solution without a server side language.
Include tree like structure for all directory components(path) links (native htmls) in index.html and apply some basic jquery animation to feel like tree structure. | Jquery / javascript are client side languages, you must have something on your server.
Perhaps if you'll have a WebService on your server, you can call it with jquery and format it in your html. |
8,631,629 | I would like to list the directory that my current website will be in as a browsable tree (similar to the way a web browser lists a directory if there are no index files present) - basically, an FTP listing. However, I can't use PHP because the server I'm developing for does not support PHP (or any similar tools as far as I'm aware). I do have access to JQuery, and Java and Flash applets, though.
My question is, first of all, is that even possible? I know I can make a link that will make the browser list the directory for me, but I want this embedded within my own website (i.e. inside a div). I would prefer doing it all with just JQuery/Javascript. I'm also fairy fluent in Java, but I don't know if I can list directories in an unsigned applet. | 2011/12/25 | [
"https://Stackoverflow.com/questions/8631629",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/838060/"
] | If your server is set to list directories, you can send an XHR for the directory you want and parse the returned HTML. However, you'd be better off providing a web service that lists directories for you. | Jquery / javascript are client side languages, you must have something on your server.
Perhaps if you'll have a WebService on your server, you can call it with jquery and format it in your html. |
8,631,629 | I would like to list the directory that my current website will be in as a browsable tree (similar to the way a web browser lists a directory if there are no index files present) - basically, an FTP listing. However, I can't use PHP because the server I'm developing for does not support PHP (or any similar tools as far as I'm aware). I do have access to JQuery, and Java and Flash applets, though.
My question is, first of all, is that even possible? I know I can make a link that will make the browser list the directory for me, but I want this embedded within my own website (i.e. inside a div). I would prefer doing it all with just JQuery/Javascript. I'm also fairy fluent in Java, but I don't know if I can list directories in an unsigned applet. | 2011/12/25 | [
"https://Stackoverflow.com/questions/8631629",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/838060/"
] | If your server is set to list directories, you can send an XHR for the directory you want and parse the returned HTML. However, you'd be better off providing a web service that lists directories for you. | I don't understand your problem completely, I see only one possible solution without a server side language.
Include tree like structure for all directory components(path) links (native htmls) in index.html and apply some basic jquery animation to feel like tree structure. |
330,760 | How do I create a Group Policy that will prevent my users from accessing specific web-sites? I am at the 2008r2 functional level. | 2011/11/14 | [
"https://serverfault.com/questions/330760",
"https://serverfault.com",
"https://serverfault.com/users/100883/"
] | You need to set up an outbound proxy (Threat Management Gateway, Squid, etc) and use Group Policy to force Internet Explorer to pass all traffic though this proxy if it is not in-line. If you make the proxy in-line, then all traffic will, obviously, pass through it regardless of IE settings, making the GPO pointless.
You cannot accomplish this natively though GPO without doing something kludgey like making a hosts file on a network share with the appropriate sites blocked and using the Group Policy Preferences file update setting to push it to computers. I really advise against this. Take the time to set up a proxy and do it the right way. | There's no built in standard way to achieve this using Group Policy. |
143,273 | >
> It sounds like that she started cooking
>
>
>
versus
>
> It sounds like she started cooking.
>
>
>
1- Are these the same or different?
2- Are they complex sentences? | 2017/09/27 | [
"https://ell.stackexchange.com/questions/143273",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/62819/"
] | >
> [1]\* *It sounds like* [*that* *she started* [*cooking*]].
>
>
> [2] *It sounds like* [*she started* [*cooking*]].
>
>
>
[1] is ungrammatical because with prepositional governors such as "like", only non-expandable content clauses are permitted, i.e. the subordinator "that" is inadmissible here.
[2] is a complex sentence for it has an independent clause (the sentence as a whole) and two embedded subordinate clauses consisting of a content clause (in outer brackets) and an embedded gerund-participial clause (in inner brackets).
(Note that if "cooking" is interpreted as a noun, which is possible, then there is only one subordinate clause). | Both "like" and "that" can function as subordinating conjunctions. Using both to introduce a single subordinate clause is an error.
"That" doesn't co-locate well with the verbs "sounds" and "looks", although it appears regularly alongside similar verbs such as "appears" and "seems".
Yes, "It sounds like she started cooking." is a complex sentence. There is a subordinate clause contained within another clause. "She started cooking" could stand as a sentence on its own, but "like she started cooking" needs something to modify. In this case, it acts as a predicative adjectival subject complement, modifying the dummy subject as licensed by the copular verb. |
2,858,344 | I'm not a huge fan of the JavaScript frameworks that are out there today. I think a lot of the libraries could be written better, are chosen for a project because of favoritism rather than understanding the requirements of the problem at hand, and some JavaScript developers come to depend on them too much to the point where they are jQuery or dojo programmers, not *JavaScript* programmers. Alas, that is one person's opinion and the fact is JavaScript frameworks are a part of life. So, here's a new take on an old question: Which JavaScript framework is the least evil? That is to say, **which library most closely adheres to best practices?** Considering jQuery for a moment, it employs browser sniffing and doesn't use `new` for constructors. It is very popular and some may judge it the best by some standard, it disregards what has come to be accepted as best practices in those cases.
Edit: Please just don't say jQuery or YUI or dojo or whatever. Please say which but also provide examples. | 2010/05/18 | [
"https://Stackoverflow.com/questions/2858344",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/322819/"
] | Well - I used to be of the same view, never really used JS libs as - well, I can do it myself. But in my job I was forced to use Jquery.
Previously to that I would use Prototype and script.aculo.us and liked it because of its minimal injection into your daily workflow.
But saying the libs are evil isn't really something I agree with. Looking at the code of many libs, they are well written and concise. They generally fit all browsers without bugs.
That's the real reason to pick up these frameworks - to implement code you could create, only better. I would never be as bold to state, I could do as thorough a job as 100 contributor the frameworks have.
Additionally, its the amount of time these JS libs swallow for you.
If I can shave 3 days off creation and debugging of a project - because someone has happily done the exact same thing for me, that's great! Then hopefully I can give back on day.
I don't believe there are evil frameworks, just different. | [MyLibrary](http://www.cinsoft.net/mylib.html) |
2,858,344 | I'm not a huge fan of the JavaScript frameworks that are out there today. I think a lot of the libraries could be written better, are chosen for a project because of favoritism rather than understanding the requirements of the problem at hand, and some JavaScript developers come to depend on them too much to the point where they are jQuery or dojo programmers, not *JavaScript* programmers. Alas, that is one person's opinion and the fact is JavaScript frameworks are a part of life. So, here's a new take on an old question: Which JavaScript framework is the least evil? That is to say, **which library most closely adheres to best practices?** Considering jQuery for a moment, it employs browser sniffing and doesn't use `new` for constructors. It is very popular and some may judge it the best by some standard, it disregards what has come to be accepted as best practices in those cases.
Edit: Please just don't say jQuery or YUI or dojo or whatever. Please say which but also provide examples. | 2010/05/18 | [
"https://Stackoverflow.com/questions/2858344",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/322819/"
] | Lol. That surely is subjective, but anyways...
Personally I think [YUI](http://developer.yahoo.com/yui/) is the least *evil* as it has [Douglas Crockford](http://crockfordfacts.com/) himself advocating it. ('nuf said)
Although, I don't really think that other frameworks are necessarily evil...
[jQuery](http://jquery.com/) seems to go for easiness of use (just include jquery.js, copy-paste some samples, hack a little bit and you're done).
Dojo goes for completeness (for what I can see) implementing many utilities (much like [apache commons](http://commons.apache.org/) for java), and a broad list of widgets, grids and charts.
Then there's [Prototype](http://www.prototypejs.org/) which I'm not really fond of it since it modifies the native objects.
There's also [Ext JS](http://extjs.com/) that has lots of widgets and visual components to build full fledge applications, but I'd [stay away](http://codemonkeyism.com/more-on-extjs-the-gpl-fiasco-and-open-source-community-style/)... | [MyLibrary](http://www.cinsoft.net/mylib.html) |
2,858,344 | I'm not a huge fan of the JavaScript frameworks that are out there today. I think a lot of the libraries could be written better, are chosen for a project because of favoritism rather than understanding the requirements of the problem at hand, and some JavaScript developers come to depend on them too much to the point where they are jQuery or dojo programmers, not *JavaScript* programmers. Alas, that is one person's opinion and the fact is JavaScript frameworks are a part of life. So, here's a new take on an old question: Which JavaScript framework is the least evil? That is to say, **which library most closely adheres to best practices?** Considering jQuery for a moment, it employs browser sniffing and doesn't use `new` for constructors. It is very popular and some may judge it the best by some standard, it disregards what has come to be accepted as best practices in those cases.
Edit: Please just don't say jQuery or YUI or dojo or whatever. Please say which but also provide examples. | 2010/05/18 | [
"https://Stackoverflow.com/questions/2858344",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/322819/"
] | Well - I used to be of the same view, never really used JS libs as - well, I can do it myself. But in my job I was forced to use Jquery.
Previously to that I would use Prototype and script.aculo.us and liked it because of its minimal injection into your daily workflow.
But saying the libs are evil isn't really something I agree with. Looking at the code of many libs, they are well written and concise. They generally fit all browsers without bugs.
That's the real reason to pick up these frameworks - to implement code you could create, only better. I would never be as bold to state, I could do as thorough a job as 100 contributor the frameworks have.
Additionally, its the amount of time these JS libs swallow for you.
If I can shave 3 days off creation and debugging of a project - because someone has happily done the exact same thing for me, that's great! Then hopefully I can give back on day.
I don't believe there are evil frameworks, just different. | My vote is for jquery. With noConflict() you can use multiple versions on the same page, easy learning curve with css selectors. |
2,858,344 | I'm not a huge fan of the JavaScript frameworks that are out there today. I think a lot of the libraries could be written better, are chosen for a project because of favoritism rather than understanding the requirements of the problem at hand, and some JavaScript developers come to depend on them too much to the point where they are jQuery or dojo programmers, not *JavaScript* programmers. Alas, that is one person's opinion and the fact is JavaScript frameworks are a part of life. So, here's a new take on an old question: Which JavaScript framework is the least evil? That is to say, **which library most closely adheres to best practices?** Considering jQuery for a moment, it employs browser sniffing and doesn't use `new` for constructors. It is very popular and some may judge it the best by some standard, it disregards what has come to be accepted as best practices in those cases.
Edit: Please just don't say jQuery or YUI or dojo or whatever. Please say which but also provide examples. | 2010/05/18 | [
"https://Stackoverflow.com/questions/2858344",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/322819/"
] | Lol. That surely is subjective, but anyways...
Personally I think [YUI](http://developer.yahoo.com/yui/) is the least *evil* as it has [Douglas Crockford](http://crockfordfacts.com/) himself advocating it. ('nuf said)
Although, I don't really think that other frameworks are necessarily evil...
[jQuery](http://jquery.com/) seems to go for easiness of use (just include jquery.js, copy-paste some samples, hack a little bit and you're done).
Dojo goes for completeness (for what I can see) implementing many utilities (much like [apache commons](http://commons.apache.org/) for java), and a broad list of widgets, grids and charts.
Then there's [Prototype](http://www.prototypejs.org/) which I'm not really fond of it since it modifies the native objects.
There's also [Ext JS](http://extjs.com/) that has lots of widgets and visual components to build full fledge applications, but I'd [stay away](http://codemonkeyism.com/more-on-extjs-the-gpl-fiasco-and-open-source-community-style/)... | My vote is for jquery. With noConflict() you can use multiple versions on the same page, easy learning curve with css selectors. |
2,858,344 | I'm not a huge fan of the JavaScript frameworks that are out there today. I think a lot of the libraries could be written better, are chosen for a project because of favoritism rather than understanding the requirements of the problem at hand, and some JavaScript developers come to depend on them too much to the point where they are jQuery or dojo programmers, not *JavaScript* programmers. Alas, that is one person's opinion and the fact is JavaScript frameworks are a part of life. So, here's a new take on an old question: Which JavaScript framework is the least evil? That is to say, **which library most closely adheres to best practices?** Considering jQuery for a moment, it employs browser sniffing and doesn't use `new` for constructors. It is very popular and some may judge it the best by some standard, it disregards what has come to be accepted as best practices in those cases.
Edit: Please just don't say jQuery or YUI or dojo or whatever. Please say which but also provide examples. | 2010/05/18 | [
"https://Stackoverflow.com/questions/2858344",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/322819/"
] | Well - I used to be of the same view, never really used JS libs as - well, I can do it myself. But in my job I was forced to use Jquery.
Previously to that I would use Prototype and script.aculo.us and liked it because of its minimal injection into your daily workflow.
But saying the libs are evil isn't really something I agree with. Looking at the code of many libs, they are well written and concise. They generally fit all browsers without bugs.
That's the real reason to pick up these frameworks - to implement code you could create, only better. I would never be as bold to state, I could do as thorough a job as 100 contributor the frameworks have.
Additionally, its the amount of time these JS libs swallow for you.
If I can shave 3 days off creation and debugging of a project - because someone has happily done the exact same thing for me, that's great! Then hopefully I can give back on day.
I don't believe there are evil frameworks, just different. | Lol. That surely is subjective, but anyways...
Personally I think [YUI](http://developer.yahoo.com/yui/) is the least *evil* as it has [Douglas Crockford](http://crockfordfacts.com/) himself advocating it. ('nuf said)
Although, I don't really think that other frameworks are necessarily evil...
[jQuery](http://jquery.com/) seems to go for easiness of use (just include jquery.js, copy-paste some samples, hack a little bit and you're done).
Dojo goes for completeness (for what I can see) implementing many utilities (much like [apache commons](http://commons.apache.org/) for java), and a broad list of widgets, grids and charts.
Then there's [Prototype](http://www.prototypejs.org/) which I'm not really fond of it since it modifies the native objects.
There's also [Ext JS](http://extjs.com/) that has lots of widgets and visual components to build full fledge applications, but I'd [stay away](http://codemonkeyism.com/more-on-extjs-the-gpl-fiasco-and-open-source-community-style/)... |
17,670 | We have a situation in our product where for a long time some data has been stored in the application's database as SQL string (choice of MS SQL server or sybase SQL anywhere) which was encrypted via the Windows API function [CryptEncrypt.](http://msdn.microsoft.com/en-us/library/aa379924.aspx) (direct and de-cryptable)
The problem is that CryptEncrypt can produce NULL's in the output, meaning that when it's stored in the database, the string manipulations will at some point truncate the CipherText.
Ideally we'd like to use an algo that will produce CipherText that doesn't contain NULLs as that will cause the least amount of change to the existing databases (changing a column from string to binary and code to deal with binary instead of strings) and just decrypt existing data and re-encrypt with the new algorithm at database upgrade time.
The algorithm doesn't need to be the most secure, as the database is already in a reasonably secure environment (not an open network / the inter-webs) but does need to be better than ROT13 (which I can almost decrypt in my head now!)
edit: btw, any particular reason for changing ciphertext to cyphertext? ciphertext seems more widely used... | 2008/08/20 | [
"https://Stackoverflow.com/questions/17670",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/379/"
] | Any semi-decent algorithm will end up with a strong chance of generating a NULL value somewhere in the resulting ciphertext.
Why not do something like [base-64 encode](http://en.wikipedia.org/wiki/Base64) your resulting binary blob before persisting to the DB? ([sample implementation in C++](http://synesis.com.au/software/b64.html)). | That's an interesting route OJ.
We're looking at the feasability of a non-reversable method (still making sure we don't explicitly retrieve the data to decrypt) e.g. just store a Hash to compare on a submission |
17,670 | We have a situation in our product where for a long time some data has been stored in the application's database as SQL string (choice of MS SQL server or sybase SQL anywhere) which was encrypted via the Windows API function [CryptEncrypt.](http://msdn.microsoft.com/en-us/library/aa379924.aspx) (direct and de-cryptable)
The problem is that CryptEncrypt can produce NULL's in the output, meaning that when it's stored in the database, the string manipulations will at some point truncate the CipherText.
Ideally we'd like to use an algo that will produce CipherText that doesn't contain NULLs as that will cause the least amount of change to the existing databases (changing a column from string to binary and code to deal with binary instead of strings) and just decrypt existing data and re-encrypt with the new algorithm at database upgrade time.
The algorithm doesn't need to be the most secure, as the database is already in a reasonably secure environment (not an open network / the inter-webs) but does need to be better than ROT13 (which I can almost decrypt in my head now!)
edit: btw, any particular reason for changing ciphertext to cyphertext? ciphertext seems more widely used... | 2008/08/20 | [
"https://Stackoverflow.com/questions/17670",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/379/"
] | Any semi-decent algorithm will end up with a strong chance of generating a NULL value somewhere in the resulting ciphertext.
Why not do something like [base-64 encode](http://en.wikipedia.org/wiki/Base64) your resulting binary blob before persisting to the DB? ([sample implementation in C++](http://synesis.com.au/software/b64.html)). | Storing a hash is a good idea. However, please definitely read Jeff's [You're Probably Storing Passwords Incorrectly](http://www.codinghorror.com/blog/archives/000953.html). |
17,670 | We have a situation in our product where for a long time some data has been stored in the application's database as SQL string (choice of MS SQL server or sybase SQL anywhere) which was encrypted via the Windows API function [CryptEncrypt.](http://msdn.microsoft.com/en-us/library/aa379924.aspx) (direct and de-cryptable)
The problem is that CryptEncrypt can produce NULL's in the output, meaning that when it's stored in the database, the string manipulations will at some point truncate the CipherText.
Ideally we'd like to use an algo that will produce CipherText that doesn't contain NULLs as that will cause the least amount of change to the existing databases (changing a column from string to binary and code to deal with binary instead of strings) and just decrypt existing data and re-encrypt with the new algorithm at database upgrade time.
The algorithm doesn't need to be the most secure, as the database is already in a reasonably secure environment (not an open network / the inter-webs) but does need to be better than ROT13 (which I can almost decrypt in my head now!)
edit: btw, any particular reason for changing ciphertext to cyphertext? ciphertext seems more widely used... | 2008/08/20 | [
"https://Stackoverflow.com/questions/17670",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/379/"
] | Any semi-decent algorithm will end up with a strong chance of generating a NULL value somewhere in the resulting ciphertext.
Why not do something like [base-64 encode](http://en.wikipedia.org/wiki/Base64) your resulting binary blob before persisting to the DB? ([sample implementation in C++](http://synesis.com.au/software/b64.html)). | It seems that the developer handling this is going to wrap the existing encryption with [yEnc](http://www.yenc.org) to preserve the table integrity as the data needs to be retrievable, and this save all that messy mucking about with infinite-improbab.... uhhh changing column types on entrenched installations.
Cheers Guys |
17,670 | We have a situation in our product where for a long time some data has been stored in the application's database as SQL string (choice of MS SQL server or sybase SQL anywhere) which was encrypted via the Windows API function [CryptEncrypt.](http://msdn.microsoft.com/en-us/library/aa379924.aspx) (direct and de-cryptable)
The problem is that CryptEncrypt can produce NULL's in the output, meaning that when it's stored in the database, the string manipulations will at some point truncate the CipherText.
Ideally we'd like to use an algo that will produce CipherText that doesn't contain NULLs as that will cause the least amount of change to the existing databases (changing a column from string to binary and code to deal with binary instead of strings) and just decrypt existing data and re-encrypt with the new algorithm at database upgrade time.
The algorithm doesn't need to be the most secure, as the database is already in a reasonably secure environment (not an open network / the inter-webs) but does need to be better than ROT13 (which I can almost decrypt in my head now!)
edit: btw, any particular reason for changing ciphertext to cyphertext? ciphertext seems more widely used... | 2008/08/20 | [
"https://Stackoverflow.com/questions/17670",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/379/"
] | Storing a hash is a good idea. However, please definitely read Jeff's [You're Probably Storing Passwords Incorrectly](http://www.codinghorror.com/blog/archives/000953.html). | That's an interesting route OJ.
We're looking at the feasability of a non-reversable method (still making sure we don't explicitly retrieve the data to decrypt) e.g. just store a Hash to compare on a submission |
17,670 | We have a situation in our product where for a long time some data has been stored in the application's database as SQL string (choice of MS SQL server or sybase SQL anywhere) which was encrypted via the Windows API function [CryptEncrypt.](http://msdn.microsoft.com/en-us/library/aa379924.aspx) (direct and de-cryptable)
The problem is that CryptEncrypt can produce NULL's in the output, meaning that when it's stored in the database, the string manipulations will at some point truncate the CipherText.
Ideally we'd like to use an algo that will produce CipherText that doesn't contain NULLs as that will cause the least amount of change to the existing databases (changing a column from string to binary and code to deal with binary instead of strings) and just decrypt existing data and re-encrypt with the new algorithm at database upgrade time.
The algorithm doesn't need to be the most secure, as the database is already in a reasonably secure environment (not an open network / the inter-webs) but does need to be better than ROT13 (which I can almost decrypt in my head now!)
edit: btw, any particular reason for changing ciphertext to cyphertext? ciphertext seems more widely used... | 2008/08/20 | [
"https://Stackoverflow.com/questions/17670",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/379/"
] | Storing a hash is a good idea. However, please definitely read Jeff's [You're Probably Storing Passwords Incorrectly](http://www.codinghorror.com/blog/archives/000953.html). | It seems that the developer handling this is going to wrap the existing encryption with [yEnc](http://www.yenc.org) to preserve the table integrity as the data needs to be retrievable, and this save all that messy mucking about with infinite-improbab.... uhhh changing column types on entrenched installations.
Cheers Guys |
256,965 | We are looking to do new flooring in our downstairs bathroom. My wife likes a flooring material by a company called COREtec; specifically their ["Calypso Oak"](https://coretecfloors.com/en-us/products/coretec-enhanced/calypso-oak-vv012-00761) LVP/LVT product:
[](https://i.stack.imgur.com/5sVn3.jpg)
[](https://i.stack.imgur.com/cWnec.jpg)
Our bathroom, which currently has tiled flooring, is small and has a toilet, a pedestal sink and a doorway leading into our kitchen (so we would need a threshold). My wife seems to think we can just install this COREtec right over the tiled flooring.
What considerations do we need to look at as far as (a) subfloor/bottom support for LVP-style products and (b) edge treatment/support (e.g. meeting walls, toilet flange, etc).
Can anyone weigh in on the proper installation for this material? In particular is it OK to install/float over tiling? | 2022/09/20 | [
"https://diy.stackexchange.com/questions/256965",
"https://diy.stackexchange.com",
"https://diy.stackexchange.com/users/87068/"
] | I am currently planning a similar re-flooring job for my small bathroom that has a peel-n-stick vinyl tile floor. I've had many of the same questions as you; here's what I've found out (I'm no expert, though):
1. LVP to my understanding has a grout-like central layer and thus needs to be well-supported to prevent cracking. My vinyl floor tiles apparently qualify as OK, so I will be installing on top of the existing floor. My manufacturer says a tile floor is OK too as long as its general subfloor smoothness conditions are met.
>
> Approved subfloors: Concrete, Plywood, OSB, Particleboard, Chipboard, Hardwood (Solid,
> Engineered, Parquet), Tile (Ceramic, Terrazzo, Stone, Asbestos, Peel and
> Stick), Non-Cushion Sheet Vinyl, Metal, VCT, DRIcore
>
>
>
>
> Must be level to within 3⁄16" in a 10ft. (4.76mm in a 3m) span; no
> bumps or low spots.
>
>
>
2. Your sample seems to have a cork-like preattached underlayment. I would be concerned about using that in a potentially wet environment like a bathroom, where water may get underneath, be trapped and lead to rot. The product I am using is described as waterproof (i.e. no organic surface like cork and does not absorb substantial water), has a synthetic preattached underlayment and explicitly recommended for kitchens and bathrooms.
3. The LVP I am using is click-lock style, which IS a floating floor, and does not use any fasteners to hold the planks together or to the underlying surface. As the scalloped tongue/groove shows, it's designed not to be able to separate sideways once you angle in the next plank and rotate that down flat.
4. Because of the floating floor aspect, to account for expansion/contraction, my LVP maker recommends a 1/4-3/8 inch expansion gap around all sides. Baseboard or quarter-round wall/cabinet bottom molding, and surface transitions like door openings are not attached to the floor and will cover that gap. Toilets and tubs need to have the gap caulked with something that is very flexible and does not harden over time. In addition to the 100% silicone mentioned below, there are some specialty extreme flex caulking products available.
>
> [it is] a floating floor and should be allowed to expand and
> contract freely. It must not be glued, nailed, or fastened to the subfloor in
> any way. Permanent cabinets, vanities, islands and similar items should
> be installed first. Then, install the product around them, leaving the proper
> 1/4-3/8 inch expansion gap. The product *can* be installed under vanities with legs.
> The product can be installed under toilets; leave proper expansion space
> around flange and use a premium waterproof 100% silicone caulk. Do
> not anchor toilet through the material.
>
>
>
5. The toilet: There are two ways of dealing with this. One way is to remove the toilet, install the flooring right up to the flange (with expansion space and caulk), then reinstall the toilet with some kind of flange spacer or extra wax ring added to account for the raised height. The other way is to leave the toilet in place and install the flooring right up to the outside of the toilet (with expansion space and caulk, maybe no caulk in back so you can see any leaks). I haven't yet decided which to do, as I will also be installing a new toilet.
Edit: FreeMan makes an excellent point about the install around toilet:
>
> The only drawback to laying the tile to the toilet (and not underneath) is if the toilet should ever need to be replaced the floor might have to be replaced as well because the new base might be smaller than the old base.
>
>
>
For similar repair/modify situations down the road, it's worth holding on to any extra LVP planks just as you would hold on to extra ceramic tiles from an install. | Personally, I would take out the tile, but doesn't sound like you have too. Some of the vinyl plank flooring is not strong enough to bridge the gaps between tiles where the grout is lower. Eventually, those lines will show through. |
256,965 | We are looking to do new flooring in our downstairs bathroom. My wife likes a flooring material by a company called COREtec; specifically their ["Calypso Oak"](https://coretecfloors.com/en-us/products/coretec-enhanced/calypso-oak-vv012-00761) LVP/LVT product:
[](https://i.stack.imgur.com/5sVn3.jpg)
[](https://i.stack.imgur.com/cWnec.jpg)
Our bathroom, which currently has tiled flooring, is small and has a toilet, a pedestal sink and a doorway leading into our kitchen (so we would need a threshold). My wife seems to think we can just install this COREtec right over the tiled flooring.
What considerations do we need to look at as far as (a) subfloor/bottom support for LVP-style products and (b) edge treatment/support (e.g. meeting walls, toilet flange, etc).
Can anyone weigh in on the proper installation for this material? In particular is it OK to install/float over tiling? | 2022/09/20 | [
"https://diy.stackexchange.com/questions/256965",
"https://diy.stackexchange.com",
"https://diy.stackexchange.com/users/87068/"
] | I have installed that same flooring over tile there is no problem with that.
Remove the toilet and when laying the flooring around the toilet flange add a bead of polyester caulk such as Vulkem between the ceramic tile and the new flooring. Then use a foam toilet seal. I like Saniseals available online. Have used them for years with no issues. When the floor is complete I caulk the baseboards to the floor to give it a little better seal in wet areas.
I have used this method of install in over 30 baths in the last few years with no problems. | Personally, I would take out the tile, but doesn't sound like you have too. Some of the vinyl plank flooring is not strong enough to bridge the gaps between tiles where the grout is lower. Eventually, those lines will show through. |
45,486,612 | I have updated a web page that I didn't create. I worked locally perfecting the new layout which was fine.
However when I moved it to the server, a lot of styles didn't apply.
In troubleshooting, I found that the styles that weren't working on the server were listed as "Author Stylesheet" styles locally (in Safari Dev Tools). There are no inline styles nor is there a style tag in the HTML. The other external stylesheets show the name of the stylesheet with the line of where to find the style.
How can figure out what the source of the Author Stylesheet actually is? | 2017/08/03 | [
"https://Stackoverflow.com/questions/45486612",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/6328161/"
] | I'm not sure if this is 100% accurate, but I believe that Safari will not show the name of the css file if it is named default.css. In my case, Chrome tools displayed the file name (not just "Author Stylesheet"). | Wayne, I don't think you might declare the author of CSS file on it. You must passing the wrong name or locale from CSS server, is there all your CSS found? Aren't u using css on your local or .min.css in your app? User google chrome in the console tab to look wgat is the problems with your stylesheet. |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Let's forget for a moment about "I", and "wanting". Here are some:
* Negative things:
+ Minimise or eliminate "suffering"
+ Minimise attachment, and craving, associated with suffering
+ Minimise [defilements](https://en.wikipedia.org/wiki/Kleshas_(Buddhism))
+ Minimise [fetters](https://en.wikipedia.org/wiki/Fetter_(Buddhism))
* Positive things:
+ Maximize [wisdom](https://en.wikipedia.org/wiki/Praj%C3%B1%C4%81_(Buddhism))
+ Maximise [perfections](https://en.wikipedia.org/wiki/P%C4%81ramit%C4%81#Canonical_sources)
+ Maximise [factors of enlightenment](https://en.wikipedia.org/wiki/Seven_Factors_of_Enlightenment)
Learn to practice the noble eightfold path.
Practice good deeds (and speech), and generosity, which are for example "a support for the mind".
I think that, when a monk is dying, another monk may be advised to remind him of his "attainments" -- perhaps it's such "attainments", and "good deeds", that are not (or that are less) impermanent.
---
As for "I can't even desire Nirvana , because I never get it" -- that seems like a contradiction, you know.
Imagine "I" is like a drop of water, and "Nibbana" is like an ocean. Then "I desire Nibbana" or "I can't desire Nibbana" is like saying, "I wish this drop of water would be as big as the ocean, as permanent as the ocean, but still be the same individual drop of water."
Then people around you are like, "Dude! Let it go! Put the drop in the ocean, already!" (or, depending on the school of Buddhism, maybe, "That drop of water is already like the ocean").
I think a reason why Buddhism teaches *anatta* is because it's the characteristics of "I" that are associated with suffering -- craving to have things is associated with suffering; seeing and being attached to (and wanting to be attached to) an impermanent "self" that's going to die is associated with suffering; and so on.
One advice, which I remember from long ago, is to treat your sense of self (or your body) like a [wound](https://en.wikipedia.org/wiki/Wound) -- you take care of it, you try to treat it so as to minimize suffering, but you don't love it, you don't become attached to it. And you don't say "I can't want to be healthy because then this wound (my sense of self) would disappear."
Also there's some middle way, for example [this sutta](https://www.accesstoinsight.org/tipitaka/an/an04/an04.159.than.html) or [this sutta](https://www.accesstoinsight.org/tipitaka/sn/sn51/sn51.015.than.html) imply that some wanting is "right". | Nibbana is not of the world. Nibbana is experienced by the mind & not by the self. In Buddhism, the 'self' is merely a thought (SN 22.81).
>
> There is, bhikkhus, that base (sense experience) where there is no earth, no water, no
> fire, no air; no base consisting of the infinity of space, no base
> consisting of the infinity of consciousness, no base consisting of
> nothingness, no base consisting of
> neither-perception-nor-non-perception; **neither this world nor another
> world nor both**; neither sun nor moon. Here, bhikkhus, I say there is
> no coming, no going, no staying, no deceasing, no uprising. Not fixed,
> not movable, it has no support. Just this is the end of suffering.
>
>
> Ud 8.1
>
>
> |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | You used to desire stuff from the world before you understood the Dhamma.
After you understood the Dhamma, you can and will still desire stuff from the world. The only difference is you do it in accordance with the Middle Way, the Noble Eightfold Path, the five precepts and principles of virtue (sila).
You don't suddenly stop desiring all stuff because they are impermanent. Rather, when you desire stuff, you do so with an understanding that they are all impermanent and suffering.
What is worth desiring? This understanding. | You can want to be strong instead of weak. You can want to be a master instead of victim of circumstances. You can want to learn to control your mind. You can want to help others feel less suffering, in both ways (external and internal help). You can want to know the truth from the myths.
This world is a dream and everything here is like a phantom, but you can use it as gym to practice. Even if impermanent, this is good exercise. |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Let's forget for a moment about "I", and "wanting". Here are some:
* Negative things:
+ Minimise or eliminate "suffering"
+ Minimise attachment, and craving, associated with suffering
+ Minimise [defilements](https://en.wikipedia.org/wiki/Kleshas_(Buddhism))
+ Minimise [fetters](https://en.wikipedia.org/wiki/Fetter_(Buddhism))
* Positive things:
+ Maximize [wisdom](https://en.wikipedia.org/wiki/Praj%C3%B1%C4%81_(Buddhism))
+ Maximise [perfections](https://en.wikipedia.org/wiki/P%C4%81ramit%C4%81#Canonical_sources)
+ Maximise [factors of enlightenment](https://en.wikipedia.org/wiki/Seven_Factors_of_Enlightenment)
Learn to practice the noble eightfold path.
Practice good deeds (and speech), and generosity, which are for example "a support for the mind".
I think that, when a monk is dying, another monk may be advised to remind him of his "attainments" -- perhaps it's such "attainments", and "good deeds", that are not (or that are less) impermanent.
---
As for "I can't even desire Nirvana , because I never get it" -- that seems like a contradiction, you know.
Imagine "I" is like a drop of water, and "Nibbana" is like an ocean. Then "I desire Nibbana" or "I can't desire Nibbana" is like saying, "I wish this drop of water would be as big as the ocean, as permanent as the ocean, but still be the same individual drop of water."
Then people around you are like, "Dude! Let it go! Put the drop in the ocean, already!" (or, depending on the school of Buddhism, maybe, "That drop of water is already like the ocean").
I think a reason why Buddhism teaches *anatta* is because it's the characteristics of "I" that are associated with suffering -- craving to have things is associated with suffering; seeing and being attached to (and wanting to be attached to) an impermanent "self" that's going to die is associated with suffering; and so on.
One advice, which I remember from long ago, is to treat your sense of self (or your body) like a [wound](https://en.wikipedia.org/wiki/Wound) -- you take care of it, you try to treat it so as to minimize suffering, but you don't love it, you don't become attached to it. And you don't say "I can't want to be healthy because then this wound (my sense of self) would disappear."
Also there's some middle way, for example [this sutta](https://www.accesstoinsight.org/tipitaka/an/an04/an04.159.than.html) or [this sutta](https://www.accesstoinsight.org/tipitaka/sn/sn51/sn51.015.than.html) imply that some wanting is "right". | Maybe, upon further analysis of the terms of your question, the **yearning** for an answer will just... fade away.
*That in the world by which one is a perceiver of the world, a conceiver of the world—this is called the world in the Noble One’s Discipline.*
**SN 35.116**
*Yet it is just within this fathom-long body, with its perception & intellect, that I declare that there is the cosmos, the origination of the cosmos, the cessation of the cosmos, and the path of practice leading to the cessation of the cosmos.*
**AN 4.45** |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Let's forget for a moment about "I", and "wanting". Here are some:
* Negative things:
+ Minimise or eliminate "suffering"
+ Minimise attachment, and craving, associated with suffering
+ Minimise [defilements](https://en.wikipedia.org/wiki/Kleshas_(Buddhism))
+ Minimise [fetters](https://en.wikipedia.org/wiki/Fetter_(Buddhism))
* Positive things:
+ Maximize [wisdom](https://en.wikipedia.org/wiki/Praj%C3%B1%C4%81_(Buddhism))
+ Maximise [perfections](https://en.wikipedia.org/wiki/P%C4%81ramit%C4%81#Canonical_sources)
+ Maximise [factors of enlightenment](https://en.wikipedia.org/wiki/Seven_Factors_of_Enlightenment)
Learn to practice the noble eightfold path.
Practice good deeds (and speech), and generosity, which are for example "a support for the mind".
I think that, when a monk is dying, another monk may be advised to remind him of his "attainments" -- perhaps it's such "attainments", and "good deeds", that are not (or that are less) impermanent.
---
As for "I can't even desire Nirvana , because I never get it" -- that seems like a contradiction, you know.
Imagine "I" is like a drop of water, and "Nibbana" is like an ocean. Then "I desire Nibbana" or "I can't desire Nibbana" is like saying, "I wish this drop of water would be as big as the ocean, as permanent as the ocean, but still be the same individual drop of water."
Then people around you are like, "Dude! Let it go! Put the drop in the ocean, already!" (or, depending on the school of Buddhism, maybe, "That drop of water is already like the ocean").
I think a reason why Buddhism teaches *anatta* is because it's the characteristics of "I" that are associated with suffering -- craving to have things is associated with suffering; seeing and being attached to (and wanting to be attached to) an impermanent "self" that's going to die is associated with suffering; and so on.
One advice, which I remember from long ago, is to treat your sense of self (or your body) like a [wound](https://en.wikipedia.org/wiki/Wound) -- you take care of it, you try to treat it so as to minimize suffering, but you don't love it, you don't become attached to it. And you don't say "I can't want to be healthy because then this wound (my sense of self) would disappear."
Also there's some middle way, for example [this sutta](https://www.accesstoinsight.org/tipitaka/an/an04/an04.159.than.html) or [this sutta](https://www.accesstoinsight.org/tipitaka/sn/sn51/sn51.015.than.html) imply that some wanting is "right". | You can want to be strong instead of weak. You can want to be a master instead of victim of circumstances. You can want to learn to control your mind. You can want to help others feel less suffering, in both ways (external and internal help). You can want to know the truth from the myths.
This world is a dream and everything here is like a phantom, but you can use it as gym to practice. Even if impermanent, this is good exercise. |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Let's forget for a moment about "I", and "wanting". Here are some:
* Negative things:
+ Minimise or eliminate "suffering"
+ Minimise attachment, and craving, associated with suffering
+ Minimise [defilements](https://en.wikipedia.org/wiki/Kleshas_(Buddhism))
+ Minimise [fetters](https://en.wikipedia.org/wiki/Fetter_(Buddhism))
* Positive things:
+ Maximize [wisdom](https://en.wikipedia.org/wiki/Praj%C3%B1%C4%81_(Buddhism))
+ Maximise [perfections](https://en.wikipedia.org/wiki/P%C4%81ramit%C4%81#Canonical_sources)
+ Maximise [factors of enlightenment](https://en.wikipedia.org/wiki/Seven_Factors_of_Enlightenment)
Learn to practice the noble eightfold path.
Practice good deeds (and speech), and generosity, which are for example "a support for the mind".
I think that, when a monk is dying, another monk may be advised to remind him of his "attainments" -- perhaps it's such "attainments", and "good deeds", that are not (or that are less) impermanent.
---
As for "I can't even desire Nirvana , because I never get it" -- that seems like a contradiction, you know.
Imagine "I" is like a drop of water, and "Nibbana" is like an ocean. Then "I desire Nibbana" or "I can't desire Nibbana" is like saying, "I wish this drop of water would be as big as the ocean, as permanent as the ocean, but still be the same individual drop of water."
Then people around you are like, "Dude! Let it go! Put the drop in the ocean, already!" (or, depending on the school of Buddhism, maybe, "That drop of water is already like the ocean").
I think a reason why Buddhism teaches *anatta* is because it's the characteristics of "I" that are associated with suffering -- craving to have things is associated with suffering; seeing and being attached to (and wanting to be attached to) an impermanent "self" that's going to die is associated with suffering; and so on.
One advice, which I remember from long ago, is to treat your sense of self (or your body) like a [wound](https://en.wikipedia.org/wiki/Wound) -- you take care of it, you try to treat it so as to minimize suffering, but you don't love it, you don't become attached to it. And you don't say "I can't want to be healthy because then this wound (my sense of self) would disappear."
Also there's some middle way, for example [this sutta](https://www.accesstoinsight.org/tipitaka/an/an04/an04.159.than.html) or [this sutta](https://www.accesstoinsight.org/tipitaka/sn/sn51/sn51.015.than.html) imply that some wanting is "right". | You used to desire stuff from the world before you understood the Dhamma.
After you understood the Dhamma, you can and will still desire stuff from the world. The only difference is you do it in accordance with the Middle Way, the Noble Eightfold Path, the five precepts and principles of virtue (sila).
You don't suddenly stop desiring all stuff because they are impermanent. Rather, when you desire stuff, you do so with an understanding that they are all impermanent and suffering.
What is worth desiring? This understanding. |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | You can want to be strong instead of weak. You can want to be a master instead of victim of circumstances. You can want to learn to control your mind. You can want to help others feel less suffering, in both ways (external and internal help). You can want to know the truth from the myths.
This world is a dream and everything here is like a phantom, but you can use it as gym to practice. Even if impermanent, this is good exercise. | Isn't a paradox to say everything is impermanent? Doesn't the view "everything is impermanent" remain in your mind until you die? So, there you have it, you can have something permanent until you die.
You can also permanently (until you die) abstain from killing, abstain from taking what is not given, avoid sexual misconduct, abstain from false speech and refrain from intoxicating drinks and drugs. These precepts wouldn't have been given if it not possible to maintain them permanently. So, if you want these you have them permanently until you die.
But don't wish to be strong, rich or healthy permanently (until you die) that may not happen.
---
Edit: I misunderstood you, I thought you are asking permanence in this life, if you are looking for inherently permanent to be declared before you follow the five precept and the Nobel eightfold then the permanence you are looking is not declared by The Tathagata.
>
> "In the same way, if anyone were to say, 'I won't live the holy life
> under the Blessed One as long as he does not declare to me that 'The
> cosmos is eternal,'... or that 'After death a Tathagata neither exists
> nor does not exist,' the man would die and those things would still
> remain undeclared by the Tathagata.
>
>
> |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Nibbana is not of the world. Nibbana is experienced by the mind & not by the self. In Buddhism, the 'self' is merely a thought (SN 22.81).
>
> There is, bhikkhus, that base (sense experience) where there is no earth, no water, no
> fire, no air; no base consisting of the infinity of space, no base
> consisting of the infinity of consciousness, no base consisting of
> nothingness, no base consisting of
> neither-perception-nor-non-perception; **neither this world nor another
> world nor both**; neither sun nor moon. Here, bhikkhus, I say there is
> no coming, no going, no staying, no deceasing, no uprising. Not fixed,
> not movable, it has no support. Just this is the end of suffering.
>
>
> Ud 8.1
>
>
> | You can want to be strong instead of weak. You can want to be a master instead of victim of circumstances. You can want to learn to control your mind. You can want to help others feel less suffering, in both ways (external and internal help). You can want to know the truth from the myths.
This world is a dream and everything here is like a phantom, but you can use it as gym to practice. Even if impermanent, this is good exercise. |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Maybe, upon further analysis of the terms of your question, the **yearning** for an answer will just... fade away.
*That in the world by which one is a perceiver of the world, a conceiver of the world—this is called the world in the Noble One’s Discipline.*
**SN 35.116**
*Yet it is just within this fathom-long body, with its perception & intellect, that I declare that there is the cosmos, the origination of the cosmos, the cessation of the cosmos, and the path of practice leading to the cessation of the cosmos.*
**AN 4.45** | Isn't a paradox to say everything is impermanent? Doesn't the view "everything is impermanent" remain in your mind until you die? So, there you have it, you can have something permanent until you die.
You can also permanently (until you die) abstain from killing, abstain from taking what is not given, avoid sexual misconduct, abstain from false speech and refrain from intoxicating drinks and drugs. These precepts wouldn't have been given if it not possible to maintain them permanently. So, if you want these you have them permanently until you die.
But don't wish to be strong, rich or healthy permanently (until you die) that may not happen.
---
Edit: I misunderstood you, I thought you are asking permanence in this life, if you are looking for inherently permanent to be declared before you follow the five precept and the Nobel eightfold then the permanence you are looking is not declared by The Tathagata.
>
> "In the same way, if anyone were to say, 'I won't live the holy life
> under the Blessed One as long as he does not declare to me that 'The
> cosmos is eternal,'... or that 'After death a Tathagata neither exists
> nor does not exist,' the man would die and those things would still
> remain undeclared by the Tathagata.
>
>
> |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Let's forget for a moment about "I", and "wanting". Here are some:
* Negative things:
+ Minimise or eliminate "suffering"
+ Minimise attachment, and craving, associated with suffering
+ Minimise [defilements](https://en.wikipedia.org/wiki/Kleshas_(Buddhism))
+ Minimise [fetters](https://en.wikipedia.org/wiki/Fetter_(Buddhism))
* Positive things:
+ Maximize [wisdom](https://en.wikipedia.org/wiki/Praj%C3%B1%C4%81_(Buddhism))
+ Maximise [perfections](https://en.wikipedia.org/wiki/P%C4%81ramit%C4%81#Canonical_sources)
+ Maximise [factors of enlightenment](https://en.wikipedia.org/wiki/Seven_Factors_of_Enlightenment)
Learn to practice the noble eightfold path.
Practice good deeds (and speech), and generosity, which are for example "a support for the mind".
I think that, when a monk is dying, another monk may be advised to remind him of his "attainments" -- perhaps it's such "attainments", and "good deeds", that are not (or that are less) impermanent.
---
As for "I can't even desire Nirvana , because I never get it" -- that seems like a contradiction, you know.
Imagine "I" is like a drop of water, and "Nibbana" is like an ocean. Then "I desire Nibbana" or "I can't desire Nibbana" is like saying, "I wish this drop of water would be as big as the ocean, as permanent as the ocean, but still be the same individual drop of water."
Then people around you are like, "Dude! Let it go! Put the drop in the ocean, already!" (or, depending on the school of Buddhism, maybe, "That drop of water is already like the ocean").
I think a reason why Buddhism teaches *anatta* is because it's the characteristics of "I" that are associated with suffering -- craving to have things is associated with suffering; seeing and being attached to (and wanting to be attached to) an impermanent "self" that's going to die is associated with suffering; and so on.
One advice, which I remember from long ago, is to treat your sense of self (or your body) like a [wound](https://en.wikipedia.org/wiki/Wound) -- you take care of it, you try to treat it so as to minimize suffering, but you don't love it, you don't become attached to it. And you don't say "I can't want to be healthy because then this wound (my sense of self) would disappear."
Also there's some middle way, for example [this sutta](https://www.accesstoinsight.org/tipitaka/an/an04/an04.159.than.html) or [this sutta](https://www.accesstoinsight.org/tipitaka/sn/sn51/sn51.015.than.html) imply that some wanting is "right". | Isn't a paradox to say everything is impermanent? Doesn't the view "everything is impermanent" remain in your mind until you die? So, there you have it, you can have something permanent until you die.
You can also permanently (until you die) abstain from killing, abstain from taking what is not given, avoid sexual misconduct, abstain from false speech and refrain from intoxicating drinks and drugs. These precepts wouldn't have been given if it not possible to maintain them permanently. So, if you want these you have them permanently until you die.
But don't wish to be strong, rich or healthy permanently (until you die) that may not happen.
---
Edit: I misunderstood you, I thought you are asking permanence in this life, if you are looking for inherently permanent to be declared before you follow the five precept and the Nobel eightfold then the permanence you are looking is not declared by The Tathagata.
>
> "In the same way, if anyone were to say, 'I won't live the holy life
> under the Blessed One as long as he does not declare to me that 'The
> cosmos is eternal,'... or that 'After death a Tathagata neither exists
> nor does not exist,' the man would die and those things would still
> remain undeclared by the Tathagata.
>
>
> |
25,272 | What is worth desiring from the world when everything is impermanent ?
I can't even desire Nirvana , because I never get it. [Here](https://suttacentral.net/en/mn1) it states that I can not say Nibbana as mine or me or myself( I can not say I am in state of Nibbana and I can not say Nibbana as mine):
>
> “He directly knows Nibbāna as Nibbāna. Having directly known Nibbāna
> as Nibbāna, he should not conceive himself as Nibbāna, he should not
> conceive himself in Nibbāna, he should not conceive himself apart from
> Nibbāna, he should not conceive Nibbāna to be ‘mine,’ he should not
> delight in Nibbāna. Why is that? Because he must fully understand it,
> I say.
>
>
>
( I am asking this question to understand the depths of knowledge... I am trying not to take delight in asking such questions.Buddha says one should not even take delight in Nibbana.) | 2018/02/16 | [
"https://buddhism.stackexchange.com/questions/25272",
"https://buddhism.stackexchange.com",
"https://buddhism.stackexchange.com/users/11541/"
] | Nibbana is not of the world. Nibbana is experienced by the mind & not by the self. In Buddhism, the 'self' is merely a thought (SN 22.81).
>
> There is, bhikkhus, that base (sense experience) where there is no earth, no water, no
> fire, no air; no base consisting of the infinity of space, no base
> consisting of the infinity of consciousness, no base consisting of
> nothingness, no base consisting of
> neither-perception-nor-non-perception; **neither this world nor another
> world nor both**; neither sun nor moon. Here, bhikkhus, I say there is
> no coming, no going, no staying, no deceasing, no uprising. Not fixed,
> not movable, it has no support. Just this is the end of suffering.
>
>
> Ud 8.1
>
>
> | Isn't a paradox to say everything is impermanent? Doesn't the view "everything is impermanent" remain in your mind until you die? So, there you have it, you can have something permanent until you die.
You can also permanently (until you die) abstain from killing, abstain from taking what is not given, avoid sexual misconduct, abstain from false speech and refrain from intoxicating drinks and drugs. These precepts wouldn't have been given if it not possible to maintain them permanently. So, if you want these you have them permanently until you die.
But don't wish to be strong, rich or healthy permanently (until you die) that may not happen.
---
Edit: I misunderstood you, I thought you are asking permanence in this life, if you are looking for inherently permanent to be declared before you follow the five precept and the Nobel eightfold then the permanence you are looking is not declared by The Tathagata.
>
> "In the same way, if anyone were to say, 'I won't live the holy life
> under the Blessed One as long as he does not declare to me that 'The
> cosmos is eternal,'... or that 'After death a Tathagata neither exists
> nor does not exist,' the man would die and those things would still
> remain undeclared by the Tathagata.
>
>
> |
84,612 | I have a set of force profiles of an industrial machine. I'm trying to develop an algorithm that tries to understand when a new profile is "anomalous" with respect to the ones in "normal operating conditions".
In the picture below you can see the force profiles (function of time). I want the blue curve found checked as anomalous.
What approaches do you suggest? I'm thinking about using some statistical distance (like mahalanobis) to check the similarity of a new curve to the "mean" of the others.
Another point: it can be useful to use approaches like PCA in this case? Then I can try to use clustering techniques to separate anomalous profile from normal ones. I'm not sure since I have a great number of observations but of the same variable and PCA is a multivariate technique.
][1](https://i.stack.imgur.com/t3Udo.png) | 2020/10/28 | [
"https://datascience.stackexchange.com/questions/84612",
"https://datascience.stackexchange.com",
"https://datascience.stackexchange.com/users/106450/"
] | I strongly recommend to start with a simple statistical data analysis. In this approach you take the [Moving Average/Median](https://en.wikipedia.org/wiki/Moving_average) of signals and if one signal shows a magnitude -/+ 3 times standard deviation, you mark it as anomaly. [Please have a look at this answer for Python code](https://datascience.stackexchange.com/a/6549/8878). | Trust me and use the **Isolation Forest** from [scikit-learn](https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.IsolationForest.html), and if you want to have more options with Isolation Forese use the library [PYOD](https://pyod.readthedocs.io/en/latest/_modules/pyod/models/iforest.html). |
107,291 | I’m a bit confused on why higher elevations/decreased atmospheric pressure wouldn't affect the vapor pressure of a liquid-or have a negligible affect on vapor pressure.
With decreased atmospheric pressure, boiling point decreases, and a decrease in BP would increase vapor pressure. So isn’t atmospheric pressure changing the vapor pressure? | 2018/12/31 | [
"https://chemistry.stackexchange.com/questions/107291",
"https://chemistry.stackexchange.com",
"https://chemistry.stackexchange.com/users/72892/"
] | The boiling point of a liquid is the temperature such that the liquid's vapor pressure is equal to the atmospheric pressure. When you go to a higher altitude, the boiling point is lower not because the vapor pressure of the liquid at a given temperature has changed, but because there is less atmospheric pressure.
The vapor pressure of a liquid at a given temperature is an intrinsic property due to the equilibrium between the liquid and gas phase of that substance. | Vapor pressure does affect boiling point, but it doesn't go the other way. BP depends on VP, and VP depends on temperature. It is a one way relationship. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | One reason to divide a clock by two is to obtain an even 50% duty cycle square wave. It may be that the 8085 internally uses both clock edges, and wouldn't function if one half of the cycle happened to be much shorter than the other.
In the days when the 8085 was new, those nice canned oscillators weren't common, and people often cobbled together clock circuits out of discrete crystals, capacitors, and logic gates. Dividing by two ensures that you have equally spaced rising and falling edges.
As for 6.144MHz, you will find that it can be divided by an integer to get common baud rate values, at least up to 38400.
---
*follow up ...*
---------------
Looking at an Intel data sheet for the 8085, there are three interesting statements
1. >
> The 8085 incorporates all of the features that the 8224 clock generator and 8228 system controller provided for the 8080A
>
>
>
2. >
> X1 and X2: Are connected to a crystal, LC or RC network to drive the internal clock generator. The input frequency is divided by 2 to give the processor's internal operating frequency.
>
>
>
3. >
> CLK: Clock output for use as a system clock. The period of CLK is twice the X1, X2 input period.
>
>
>
So, speculations about using the odd edges of the clock to move stuff around internally aside, it becomes apparent that when they designed the 8085, Intel was replacing the need for a special clock controller by integrating that feature into the chip. Dividing the X1-X2 timebase in half before outputting it as CLK ensures that the *system* gets a nice even duty cycle, if nothing else. | There are lots of reasons to split the instruction cycle into multiple clock cycles. A good example is accessing the main memory bus.
Most modern processors are Von-Neumann architectures; that is, their code and data both exist in the same memory chip. Well, if you want to read an instruction, and that instruction is going to load a variable from memory...that's two memory accesses. But most memory is only single-port (that is, it can only do one read or write per cycle). So how do you read the instruction *and* read your variable?
The solution is to use a two-stage instruction cycle. The first stage will fetch the instruction from memory, and the second stage can then read (or write!) the variable from main memory.
Some older chips went even further. Back in the day, if your chip had 16-bits of addressable memory, but the external address bus is only 8-bits, then you would be familiar with the Address Latch Enable. One clock cycle sends the upper 8-bits of the 16-bit address, and the next clock cycle sends the lower 8-bits. A third cycle could then read/write the variable from/to memory.
There are other, better reasons to have an instruction cycle that is multiple clock cycles in length. One of the best reasons is pipelining. This is a trick that modern processors use to more fully exploit all the execution units available in a chip; for example, while one instruction is being executed, the next is being fetched at the same time. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | One reason to divide a clock by two is to obtain an even 50% duty cycle square wave. It may be that the 8085 internally uses both clock edges, and wouldn't function if one half of the cycle happened to be much shorter than the other.
In the days when the 8085 was new, those nice canned oscillators weren't common, and people often cobbled together clock circuits out of discrete crystals, capacitors, and logic gates. Dividing by two ensures that you have equally spaced rising and falling edges.
As for 6.144MHz, you will find that it can be divided by an integer to get common baud rate values, at least up to 38400.
---
*follow up ...*
---------------
Looking at an Intel data sheet for the 8085, there are three interesting statements
1. >
> The 8085 incorporates all of the features that the 8224 clock generator and 8228 system controller provided for the 8080A
>
>
>
2. >
> X1 and X2: Are connected to a crystal, LC or RC network to drive the internal clock generator. The input frequency is divided by 2 to give the processor's internal operating frequency.
>
>
>
3. >
> CLK: Clock output for use as a system clock. The period of CLK is twice the X1, X2 input period.
>
>
>
So, speculations about using the odd edges of the clock to move stuff around internally aside, it becomes apparent that when they designed the 8085, Intel was replacing the need for a special clock controller by integrating that feature into the chip. Dividing the X1-X2 timebase in half before outputting it as CLK ensures that the *system* gets a nice even duty cycle, if nothing else. | At the time this chip was designed, people used as few transistors as possible in the CPU, to make them small enough to fit on the available chips.
I suspect that practically every "register" (both programmer-visible instruction-set registers and also internal microarchitecture latches) in a CPU of that era stored data in a transparent [gated D latch](http://en.wikipedia.org/wiki/gated_D_latch) or something similar.
Nowadays, there's plenty of transistors on a chip, so it's simpler to use full master-slave D flip-flops, even though they use twice as many transistors.
Many instructions take data from some register A, combine it with some other data with the ALU, and store the result back in register A.
That is pretty easy to do if register A is implemented with a full master-slave D flip-flop.
But if register A is a transparent gated D latch, you need non-overlapping clocks.
You use a pulse on one clock to store some intermediate result somewhere (while register A holds its output constant), and then a pulse on another clock to load register A with the new value (while the intermediate register holds its output constant).
This requires a 2-phase clock.
The easiest way to make a non-overlapping 2-phase clock (in those days when transistors were scarce) was a little external circuit that takes an input clock and divides it by two.
As time went on, people figured out how to pack more and more transistors onto an IC.
So people designing CPUs integrated more and more of the stuff around the CPU in a full computer system onto the CPU chip.
Reading between the lines of the [Wikipedia clock signal article](http://en.wikipedia.org/wiki/clock_signal),
I get the impression that the people who designed the 8085 and the 6502 and other chips of that era had just a little more room than the previous generation of integrated CPUs,
and they decided the best use of that room was to put that little external circuit on-chip.
But they kept all the registers the same gated D latch as before.
So that's why the clock frequency is divided by two. You can think of the first external clock pulse generating a pulse on the phase\_one internal clock signal to update that intermediate result register, and the second pulse from the external clock generating a pulse on the phase\_two internal clock signal to update the programmer-visible register. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | One reason to divide a clock by two is to obtain an even 50% duty cycle square wave. It may be that the 8085 internally uses both clock edges, and wouldn't function if one half of the cycle happened to be much shorter than the other.
In the days when the 8085 was new, those nice canned oscillators weren't common, and people often cobbled together clock circuits out of discrete crystals, capacitors, and logic gates. Dividing by two ensures that you have equally spaced rising and falling edges.
As for 6.144MHz, you will find that it can be divided by an integer to get common baud rate values, at least up to 38400.
---
*follow up ...*
---------------
Looking at an Intel data sheet for the 8085, there are three interesting statements
1. >
> The 8085 incorporates all of the features that the 8224 clock generator and 8228 system controller provided for the 8080A
>
>
>
2. >
> X1 and X2: Are connected to a crystal, LC or RC network to drive the internal clock generator. The input frequency is divided by 2 to give the processor's internal operating frequency.
>
>
>
3. >
> CLK: Clock output for use as a system clock. The period of CLK is twice the X1, X2 input period.
>
>
>
So, speculations about using the odd edges of the clock to move stuff around internally aside, it becomes apparent that when they designed the 8085, Intel was replacing the need for a special clock controller by integrating that feature into the chip. Dividing the X1-X2 timebase in half before outputting it as CLK ensures that the *system* gets a nice even duty cycle, if nothing else. | Clock is nothing but a moment when you want an event to occur. Now, we do not prefer level triggering in digital circuits because when more time is given, interaction may occur between different circuits within the microprocessor leading to short circuits. So we GO FOR EDGE TRIGGERING.
Now, the microprocessor doesn't know when edge triggering has occured. It only understands 1 or 0. So a flip flop is required to produce 1 and 0 whenever a clock edge is detected. Thus , it becomes necessary to use a flip flop. As a result the clock frequency is divided by two. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | One reason to divide a clock by two is to obtain an even 50% duty cycle square wave. It may be that the 8085 internally uses both clock edges, and wouldn't function if one half of the cycle happened to be much shorter than the other.
In the days when the 8085 was new, those nice canned oscillators weren't common, and people often cobbled together clock circuits out of discrete crystals, capacitors, and logic gates. Dividing by two ensures that you have equally spaced rising and falling edges.
As for 6.144MHz, you will find that it can be divided by an integer to get common baud rate values, at least up to 38400.
---
*follow up ...*
---------------
Looking at an Intel data sheet for the 8085, there are three interesting statements
1. >
> The 8085 incorporates all of the features that the 8224 clock generator and 8228 system controller provided for the 8080A
>
>
>
2. >
> X1 and X2: Are connected to a crystal, LC or RC network to drive the internal clock generator. The input frequency is divided by 2 to give the processor's internal operating frequency.
>
>
>
3. >
> CLK: Clock output for use as a system clock. The period of CLK is twice the X1, X2 input period.
>
>
>
So, speculations about using the odd edges of the clock to move stuff around internally aside, it becomes apparent that when they designed the 8085, Intel was replacing the need for a special clock controller by integrating that feature into the chip. Dividing the X1-X2 timebase in half before outputting it as CLK ensures that the *system* gets a nice even duty cycle, if nothing else. | Internally, the core of the 8085A requires a two-phase clock. The internal logic that derives the two clock phases also divides the input clock by two. As previously stated, the reason for using a 6.144MHz input clock is for baud-rate purposes, the chip will run just fine at 6MHz. The chip is actually rated at 3MHz requiring a 6MHz crystal, but runs happily with a 6.144MHz giving easier baud rate generation (An Uart could be clocked with either the 6.144MHz from an Oscillator driving the 8085 or at 3.072MHz from the 8085's CLK output providing many usable Baud rates). I still use these archaic chips to perform special functions in some of my robots. I clock the Uarts with their own oscillator and I clock the 8085A's with a 6.4MHz oscillator, which runs the chip at 3.2MHz. The 3.2MHz divides down nicely to provide the 40KHz clock for my ultrasonic transducers. It makes more sense to use more modern I.C. devices in my 'bots, but I have a ton of old 8085's, Z80's, 63C09 and 63C09E's, 68B09 and 68B09E's, etc. that I really enjoy playing with. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | At the time this chip was designed, people used as few transistors as possible in the CPU, to make them small enough to fit on the available chips.
I suspect that practically every "register" (both programmer-visible instruction-set registers and also internal microarchitecture latches) in a CPU of that era stored data in a transparent [gated D latch](http://en.wikipedia.org/wiki/gated_D_latch) or something similar.
Nowadays, there's plenty of transistors on a chip, so it's simpler to use full master-slave D flip-flops, even though they use twice as many transistors.
Many instructions take data from some register A, combine it with some other data with the ALU, and store the result back in register A.
That is pretty easy to do if register A is implemented with a full master-slave D flip-flop.
But if register A is a transparent gated D latch, you need non-overlapping clocks.
You use a pulse on one clock to store some intermediate result somewhere (while register A holds its output constant), and then a pulse on another clock to load register A with the new value (while the intermediate register holds its output constant).
This requires a 2-phase clock.
The easiest way to make a non-overlapping 2-phase clock (in those days when transistors were scarce) was a little external circuit that takes an input clock and divides it by two.
As time went on, people figured out how to pack more and more transistors onto an IC.
So people designing CPUs integrated more and more of the stuff around the CPU in a full computer system onto the CPU chip.
Reading between the lines of the [Wikipedia clock signal article](http://en.wikipedia.org/wiki/clock_signal),
I get the impression that the people who designed the 8085 and the 6502 and other chips of that era had just a little more room than the previous generation of integrated CPUs,
and they decided the best use of that room was to put that little external circuit on-chip.
But they kept all the registers the same gated D latch as before.
So that's why the clock frequency is divided by two. You can think of the first external clock pulse generating a pulse on the phase\_one internal clock signal to update that intermediate result register, and the second pulse from the external clock generating a pulse on the phase\_two internal clock signal to update the programmer-visible register. | There are lots of reasons to split the instruction cycle into multiple clock cycles. A good example is accessing the main memory bus.
Most modern processors are Von-Neumann architectures; that is, their code and data both exist in the same memory chip. Well, if you want to read an instruction, and that instruction is going to load a variable from memory...that's two memory accesses. But most memory is only single-port (that is, it can only do one read or write per cycle). So how do you read the instruction *and* read your variable?
The solution is to use a two-stage instruction cycle. The first stage will fetch the instruction from memory, and the second stage can then read (or write!) the variable from main memory.
Some older chips went even further. Back in the day, if your chip had 16-bits of addressable memory, but the external address bus is only 8-bits, then you would be familiar with the Address Latch Enable. One clock cycle sends the upper 8-bits of the 16-bit address, and the next clock cycle sends the lower 8-bits. A third cycle could then read/write the variable from/to memory.
There are other, better reasons to have an instruction cycle that is multiple clock cycles in length. One of the best reasons is pipelining. This is a trick that modern processors use to more fully exploit all the execution units available in a chip; for example, while one instruction is being executed, the next is being fetched at the same time. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | There are lots of reasons to split the instruction cycle into multiple clock cycles. A good example is accessing the main memory bus.
Most modern processors are Von-Neumann architectures; that is, their code and data both exist in the same memory chip. Well, if you want to read an instruction, and that instruction is going to load a variable from memory...that's two memory accesses. But most memory is only single-port (that is, it can only do one read or write per cycle). So how do you read the instruction *and* read your variable?
The solution is to use a two-stage instruction cycle. The first stage will fetch the instruction from memory, and the second stage can then read (or write!) the variable from main memory.
Some older chips went even further. Back in the day, if your chip had 16-bits of addressable memory, but the external address bus is only 8-bits, then you would be familiar with the Address Latch Enable. One clock cycle sends the upper 8-bits of the 16-bit address, and the next clock cycle sends the lower 8-bits. A third cycle could then read/write the variable from/to memory.
There are other, better reasons to have an instruction cycle that is multiple clock cycles in length. One of the best reasons is pipelining. This is a trick that modern processors use to more fully exploit all the execution units available in a chip; for example, while one instruction is being executed, the next is being fetched at the same time. | Clock is nothing but a moment when you want an event to occur. Now, we do not prefer level triggering in digital circuits because when more time is given, interaction may occur between different circuits within the microprocessor leading to short circuits. So we GO FOR EDGE TRIGGERING.
Now, the microprocessor doesn't know when edge triggering has occured. It only understands 1 or 0. So a flip flop is required to produce 1 and 0 whenever a clock edge is detected. Thus , it becomes necessary to use a flip flop. As a result the clock frequency is divided by two. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | There are lots of reasons to split the instruction cycle into multiple clock cycles. A good example is accessing the main memory bus.
Most modern processors are Von-Neumann architectures; that is, their code and data both exist in the same memory chip. Well, if you want to read an instruction, and that instruction is going to load a variable from memory...that's two memory accesses. But most memory is only single-port (that is, it can only do one read or write per cycle). So how do you read the instruction *and* read your variable?
The solution is to use a two-stage instruction cycle. The first stage will fetch the instruction from memory, and the second stage can then read (or write!) the variable from main memory.
Some older chips went even further. Back in the day, if your chip had 16-bits of addressable memory, but the external address bus is only 8-bits, then you would be familiar with the Address Latch Enable. One clock cycle sends the upper 8-bits of the 16-bit address, and the next clock cycle sends the lower 8-bits. A third cycle could then read/write the variable from/to memory.
There are other, better reasons to have an instruction cycle that is multiple clock cycles in length. One of the best reasons is pipelining. This is a trick that modern processors use to more fully exploit all the execution units available in a chip; for example, while one instruction is being executed, the next is being fetched at the same time. | Internally, the core of the 8085A requires a two-phase clock. The internal logic that derives the two clock phases also divides the input clock by two. As previously stated, the reason for using a 6.144MHz input clock is for baud-rate purposes, the chip will run just fine at 6MHz. The chip is actually rated at 3MHz requiring a 6MHz crystal, but runs happily with a 6.144MHz giving easier baud rate generation (An Uart could be clocked with either the 6.144MHz from an Oscillator driving the 8085 or at 3.072MHz from the 8085's CLK output providing many usable Baud rates). I still use these archaic chips to perform special functions in some of my robots. I clock the Uarts with their own oscillator and I clock the 8085A's with a 6.4MHz oscillator, which runs the chip at 3.2MHz. The 3.2MHz divides down nicely to provide the 40KHz clock for my ultrasonic transducers. It makes more sense to use more modern I.C. devices in my 'bots, but I have a ton of old 8085's, Z80's, 63C09 and 63C09E's, 68B09 and 68B09E's, etc. that I really enjoy playing with. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | At the time this chip was designed, people used as few transistors as possible in the CPU, to make them small enough to fit on the available chips.
I suspect that practically every "register" (both programmer-visible instruction-set registers and also internal microarchitecture latches) in a CPU of that era stored data in a transparent [gated D latch](http://en.wikipedia.org/wiki/gated_D_latch) or something similar.
Nowadays, there's plenty of transistors on a chip, so it's simpler to use full master-slave D flip-flops, even though they use twice as many transistors.
Many instructions take data from some register A, combine it with some other data with the ALU, and store the result back in register A.
That is pretty easy to do if register A is implemented with a full master-slave D flip-flop.
But if register A is a transparent gated D latch, you need non-overlapping clocks.
You use a pulse on one clock to store some intermediate result somewhere (while register A holds its output constant), and then a pulse on another clock to load register A with the new value (while the intermediate register holds its output constant).
This requires a 2-phase clock.
The easiest way to make a non-overlapping 2-phase clock (in those days when transistors were scarce) was a little external circuit that takes an input clock and divides it by two.
As time went on, people figured out how to pack more and more transistors onto an IC.
So people designing CPUs integrated more and more of the stuff around the CPU in a full computer system onto the CPU chip.
Reading between the lines of the [Wikipedia clock signal article](http://en.wikipedia.org/wiki/clock_signal),
I get the impression that the people who designed the 8085 and the 6502 and other chips of that era had just a little more room than the previous generation of integrated CPUs,
and they decided the best use of that room was to put that little external circuit on-chip.
But they kept all the registers the same gated D latch as before.
So that's why the clock frequency is divided by two. You can think of the first external clock pulse generating a pulse on the phase\_one internal clock signal to update that intermediate result register, and the second pulse from the external clock generating a pulse on the phase\_two internal clock signal to update the programmer-visible register. | Clock is nothing but a moment when you want an event to occur. Now, we do not prefer level triggering in digital circuits because when more time is given, interaction may occur between different circuits within the microprocessor leading to short circuits. So we GO FOR EDGE TRIGGERING.
Now, the microprocessor doesn't know when edge triggering has occured. It only understands 1 or 0. So a flip flop is required to produce 1 and 0 whenever a clock edge is detected. Thus , it becomes necessary to use a flip flop. As a result the clock frequency is divided by two. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | At the time this chip was designed, people used as few transistors as possible in the CPU, to make them small enough to fit on the available chips.
I suspect that practically every "register" (both programmer-visible instruction-set registers and also internal microarchitecture latches) in a CPU of that era stored data in a transparent [gated D latch](http://en.wikipedia.org/wiki/gated_D_latch) or something similar.
Nowadays, there's plenty of transistors on a chip, so it's simpler to use full master-slave D flip-flops, even though they use twice as many transistors.
Many instructions take data from some register A, combine it with some other data with the ALU, and store the result back in register A.
That is pretty easy to do if register A is implemented with a full master-slave D flip-flop.
But if register A is a transparent gated D latch, you need non-overlapping clocks.
You use a pulse on one clock to store some intermediate result somewhere (while register A holds its output constant), and then a pulse on another clock to load register A with the new value (while the intermediate register holds its output constant).
This requires a 2-phase clock.
The easiest way to make a non-overlapping 2-phase clock (in those days when transistors were scarce) was a little external circuit that takes an input clock and divides it by two.
As time went on, people figured out how to pack more and more transistors onto an IC.
So people designing CPUs integrated more and more of the stuff around the CPU in a full computer system onto the CPU chip.
Reading between the lines of the [Wikipedia clock signal article](http://en.wikipedia.org/wiki/clock_signal),
I get the impression that the people who designed the 8085 and the 6502 and other chips of that era had just a little more room than the previous generation of integrated CPUs,
and they decided the best use of that room was to put that little external circuit on-chip.
But they kept all the registers the same gated D latch as before.
So that's why the clock frequency is divided by two. You can think of the first external clock pulse generating a pulse on the phase\_one internal clock signal to update that intermediate result register, and the second pulse from the external clock generating a pulse on the phase\_two internal clock signal to update the programmer-visible register. | Internally, the core of the 8085A requires a two-phase clock. The internal logic that derives the two clock phases also divides the input clock by two. As previously stated, the reason for using a 6.144MHz input clock is for baud-rate purposes, the chip will run just fine at 6MHz. The chip is actually rated at 3MHz requiring a 6MHz crystal, but runs happily with a 6.144MHz giving easier baud rate generation (An Uart could be clocked with either the 6.144MHz from an Oscillator driving the 8085 or at 3.072MHz from the 8085's CLK output providing many usable Baud rates). I still use these archaic chips to perform special functions in some of my robots. I clock the Uarts with their own oscillator and I clock the 8085A's with a 6.4MHz oscillator, which runs the chip at 3.2MHz. The 3.2MHz divides down nicely to provide the 40KHz clock for my ultrasonic transducers. It makes more sense to use more modern I.C. devices in my 'bots, but I have a ton of old 8085's, Z80's, 63C09 and 63C09E's, 68B09 and 68B09E's, etc. that I really enjoy playing with. |
4,458 | Why is it that the produced clock frequency is 6.144 MHz, but internally it (8085 processor) uses only 3.072 MHz. Also what leads to the specific value of 6.144 in a clock.
I found an answer at yahoo.... <http://answers.yahoo.com/question/index?qid=20080810090119AAurr2i>
but I must admit I didn't still get it it well. Could any of you guys throw out a few lines on this, please? | 2010/09/19 | [
"https://electronics.stackexchange.com/questions/4458",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/1163/"
] | Internally, the core of the 8085A requires a two-phase clock. The internal logic that derives the two clock phases also divides the input clock by two. As previously stated, the reason for using a 6.144MHz input clock is for baud-rate purposes, the chip will run just fine at 6MHz. The chip is actually rated at 3MHz requiring a 6MHz crystal, but runs happily with a 6.144MHz giving easier baud rate generation (An Uart could be clocked with either the 6.144MHz from an Oscillator driving the 8085 or at 3.072MHz from the 8085's CLK output providing many usable Baud rates). I still use these archaic chips to perform special functions in some of my robots. I clock the Uarts with their own oscillator and I clock the 8085A's with a 6.4MHz oscillator, which runs the chip at 3.2MHz. The 3.2MHz divides down nicely to provide the 40KHz clock for my ultrasonic transducers. It makes more sense to use more modern I.C. devices in my 'bots, but I have a ton of old 8085's, Z80's, 63C09 and 63C09E's, 68B09 and 68B09E's, etc. that I really enjoy playing with. | Clock is nothing but a moment when you want an event to occur. Now, we do not prefer level triggering in digital circuits because when more time is given, interaction may occur between different circuits within the microprocessor leading to short circuits. So we GO FOR EDGE TRIGGERING.
Now, the microprocessor doesn't know when edge triggering has occured. It only understands 1 or 0. So a flip flop is required to produce 1 and 0 whenever a clock edge is detected. Thus , it becomes necessary to use a flip flop. As a result the clock frequency is divided by two. |
338,221 | The idea is download a video in parts (from different servers) but starting to play before video file is complete.
The issue is that VideoDisplay component doesn't read the video file if it is opened for writing and vice-versa: writing is impossible if VideoDisplay plays the video... | 2008/12/03 | [
"https://Stackoverflow.com/questions/338221",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/-1/"
] | I know I may sound totally off-topic, but you should make sure you've properly considered video streaming thru Flash Media Server, Wowza or Red5 before you put that much effort in downloading a file in chunks. Just a thought.. | What about having multiple parts of the video, so playing can begin as soon as first part gets downloaded. So the parts have to be concatenated somehow at client side.
(Additionally, if one's connection is insufficient, showing a loading symbol is fine.) |
338,221 | The idea is download a video in parts (from different servers) but starting to play before video file is complete.
The issue is that VideoDisplay component doesn't read the video file if it is opened for writing and vice-versa: writing is impossible if VideoDisplay plays the video... | 2008/12/03 | [
"https://Stackoverflow.com/questions/338221",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/-1/"
] | I know I may sound totally off-topic, but you should make sure you've properly considered video streaming thru Flash Media Server, Wowza or Red5 before you put that much effort in downloading a file in chunks. Just a thought.. | Open the file in Shared mode, if that is possible with Air. Mainstream OS's (Windows, Linux, MacOS) have this functionality built in.
Use two threads:
In thread 1 (the downloader thread) open the file in Shared mode to allow reading from other threads and processes.
In thread 2 (the player thread) open the file in Shared mode to allow reading and writing from other threads and processes.
Be sure to buffer the beginning of the file so your player will always have something to play and won't choke while playing an incomplete file. |
377,194 | Is it possible to deny or prevent or obstruct a network scan on the network where your computer is connected to? | 2012/01/11 | [
"https://superuser.com/questions/377194",
"https://superuser.com",
"https://superuser.com/users/112925/"
] | If you don't want your pc to be scanned for open ports or available services, you can use a firewall that closes/stealths the necessary ports. Beware, certain ports wil always be open to be able to communicate with the network. | You can't without disconnecting from the network.
All the firewalls and IDS in the world can't stop it if someone knows what they are doing. |
7,960 | I have some questions regarding aforementioned subject:
* Is there a EC equivalent of RSA-OAEP key transport/encryption algorithm ?
* Is ECIES-KEM sufficient ? | 2013/04/10 | [
"https://crypto.stackexchange.com/questions/7960",
"https://crypto.stackexchange.com",
"https://crypto.stackexchange.com/users/4688/"
] | Short answer,
- yes
- yes
To be honest I don't really know how to give a longer answer.
He are some pointers
<http://www.secg.org/download/aid-780/sec1-v2.pdf>
<http://digital.csic.es/bitstream/10261/32674/1/Gayoso_A%20Comparison%20of%20the%20Standardized%20Versions%20of%20ECIES.pdf> | As I understand it, there's really no RSA equivalent in EC. See, for example, [Why are elliptic curve variants of RSA "chiefly of academic interest"?](https://crypto.stackexchange.com/questions/3969/why-are-elliptic-curve-variants-of-rsa-chiefly-of-academic-interest)
Shoup's Integrated Encryption Scheme (ECIES) is an entirely different cryptosystem, and its probably closer to Abdalla, Bellare and Rogaway's [DHIES: An encryption scheme
based on the Diffie-Hellman Problem](http://charlotte.ucsd.edu/~mihir/papers/dhaes.pdf) in the integer world (sans the fact that ECIES is over EC). |
7,960 | I have some questions regarding aforementioned subject:
* Is there a EC equivalent of RSA-OAEP key transport/encryption algorithm ?
* Is ECIES-KEM sufficient ? | 2013/04/10 | [
"https://crypto.stackexchange.com/questions/7960",
"https://crypto.stackexchange.com",
"https://crypto.stackexchange.com/users/4688/"
] | Short answer,
- yes
- yes
To be honest I don't really know how to give a longer answer.
He are some pointers
<http://www.secg.org/download/aid-780/sec1-v2.pdf>
<http://digital.csic.es/bitstream/10261/32674/1/Gayoso_A%20Comparison%20of%20the%20Standardized%20Versions%20of%20ECIES.pdf> | The question is what you mean by "eqivalence".
RSA-OAEP yields to an RSA encryption scheme providing security against adaptive chosen message attacks (IND-CCA2) in the random oracle model, while plain RSA does not even provide IND-CPA security.
If you mean security (which I assume), then **yes**, ECIES also achieves the same formal security guarantees as RSA-OAEP in the elliptic curve setting.
If you want an encryption scheme for elliptic curves providing IND-CCA2 security without random oracles, i.e., relying only on standard assumptions, then you can take the elliptic curve version of Cramer-Shoup encryption.
Latter however, is less efficient then ECIES.
If you only require IND-CPA security, you can also use elliptic curve versions of ElGamal encryption.
Finally, while ECIES is a hybrid encryption scheme by design, the others aren't. However, you can turn them into hybrid schemes. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Go with [Total Choice Hosting](http://totalchoicehosting.com/). They have awesome support and with your budget you can afford **two** of their *Gold* plan which gives you 1 TB of bandwidth.
You probably do not need that much even unless you product is hugely popular. You can even get away with buying one plan (saving half the cost) there if you make one site a subdomain of the other. I'd start with the *Silver* plan even for 2 x $55 /year. You can always upgrade and you'll get an email alert when you got close to your bandwidth limit.
The location of your service is not that important. There is an advantage to being physically closer to your target customers but it is usually very small unless dealing with high-bandwidth data such as video. | Check out <http://www.rshosting.com> or <http://www.rshosting.co.uk>
I have been their customer for almost a couple of years now and have been very satisfied with the level of web hosting services and support I have received from them. Decent website uptime, and fast connectivity to their servers and support is a key point that makes customers like us even more happy and satisfied. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Don't spend £250/year. Spend as little as possible, then scale as you grow. Two options to consider:
### 1. Use a source code hosting service such as github
[Github](https://github.com/) is a popular hosting service for the [git](http://git-scm.com/) version control system. In addition to [code hosting](https://github.com/features/hosting) and online code browsing, the long list of [features](https://github.com/features/projects) it offers includes team management, wikis, forums, and bug tracking.
Github is free for open-source projects, and you can even [host project pages](http://pages.github.com/) and entire websites with it. Since good open-source projects use version control anyway, I think it's worth taking the time to [learn git](http://book.git-scm.com/) just to take advantage of github.
You may also wish to consider other code hosting services, such as [Bitbucket,](https://bitbucket.org/) which uses the [Mercurial](http://mercurial.selenic.com/) version control system.
The great thing about services like these is that they encourage a community of active users to spring up around your project, because you've chosen to use a dedicated code hosting service that many are already familiar with and using in other projects they contribute to. Contributors can push fixes and new code to you, and you can review it and accept it into the official project. If I was starting an open-source project, github is what I'd use to promote and manage it.
### 2. Launch on cheap shared hosting
If you don't want to use a source code hosting service for some reason, I'd suggest shared hosting.
Your demands aren't particularly complicated and, although you don't state how big the project is in terms of userbase and expected traffic, it sounds like you don't need a VPS unless you plan to host your own source repositories. I'd suggest a cheap shared hosting package such as the 'Baby Plan' from [Hostgator,](http://www.hostgator.com/shared.shtml) which would cost $95.52 (approx £59) a year if you sign up for 12 months (and less if you sign up for a two or three -year term).
This allows you to host multiple domains and gives you an 'unlimited' amount of disk space and bandwidth. (If you read the fine print it turns out that 'unlimited' actually means limited, but only if you abuse their terms of service by, for example, hosting illegal downloads or large files that become very popular.)
Finding U.K. hosting companies who compete with U.S. shared hosting services on features and price is very difficult, unfortunately, and they are often many times more expensive. For this reason I tend to host my projects with U.S. companies now, even though I'd like to support British ones. I can recommend both [34sp.com](http://34sp.com) and [OpenmindHosting,](http://www.openmindhosting.co.uk/) but their basic packages support a limited number of domains (one for 34sp, two for Openmind) and their bandwidth/storage features aren't as generous, so you may find yourself paying for add-on domains and bandwidth faster than you would with a U.S. service.
Some people will tell you that you should host in the U.K. if most of your users are in the U.K., but in practise many connections are so fast now that hosting in the U.S. makes little to no difference to the perceived connection speed here in the U.K. | Go with [Total Choice Hosting](http://totalchoicehosting.com/). They have awesome support and with your budget you can afford **two** of their *Gold* plan which gives you 1 TB of bandwidth.
You probably do not need that much even unless you product is hugely popular. You can even get away with buying one plan (saving half the cost) there if you make one site a subdomain of the other. I'd start with the *Silver* plan even for 2 x $55 /year. You can always upgrade and you'll get an email alert when you got close to your bandwidth limit.
The location of your service is not that important. There is an advantage to being physically closer to your target customers but it is usually very small unless dealing with high-bandwidth data such as video. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Don't spend £250/year. Spend as little as possible, then scale as you grow. Two options to consider:
### 1. Use a source code hosting service such as github
[Github](https://github.com/) is a popular hosting service for the [git](http://git-scm.com/) version control system. In addition to [code hosting](https://github.com/features/hosting) and online code browsing, the long list of [features](https://github.com/features/projects) it offers includes team management, wikis, forums, and bug tracking.
Github is free for open-source projects, and you can even [host project pages](http://pages.github.com/) and entire websites with it. Since good open-source projects use version control anyway, I think it's worth taking the time to [learn git](http://book.git-scm.com/) just to take advantage of github.
You may also wish to consider other code hosting services, such as [Bitbucket,](https://bitbucket.org/) which uses the [Mercurial](http://mercurial.selenic.com/) version control system.
The great thing about services like these is that they encourage a community of active users to spring up around your project, because you've chosen to use a dedicated code hosting service that many are already familiar with and using in other projects they contribute to. Contributors can push fixes and new code to you, and you can review it and accept it into the official project. If I was starting an open-source project, github is what I'd use to promote and manage it.
### 2. Launch on cheap shared hosting
If you don't want to use a source code hosting service for some reason, I'd suggest shared hosting.
Your demands aren't particularly complicated and, although you don't state how big the project is in terms of userbase and expected traffic, it sounds like you don't need a VPS unless you plan to host your own source repositories. I'd suggest a cheap shared hosting package such as the 'Baby Plan' from [Hostgator,](http://www.hostgator.com/shared.shtml) which would cost $95.52 (approx £59) a year if you sign up for 12 months (and less if you sign up for a two or three -year term).
This allows you to host multiple domains and gives you an 'unlimited' amount of disk space and bandwidth. (If you read the fine print it turns out that 'unlimited' actually means limited, but only if you abuse their terms of service by, for example, hosting illegal downloads or large files that become very popular.)
Finding U.K. hosting companies who compete with U.S. shared hosting services on features and price is very difficult, unfortunately, and they are often many times more expensive. For this reason I tend to host my projects with U.S. companies now, even though I'd like to support British ones. I can recommend both [34sp.com](http://34sp.com) and [OpenmindHosting,](http://www.openmindhosting.co.uk/) but their basic packages support a limited number of domains (one for 34sp, two for Openmind) and their bandwidth/storage features aren't as generous, so you may find yourself paying for add-on domains and bandwidth faster than you would with a U.S. service.
Some people will tell you that you should host in the U.K. if most of your users are in the U.K., but in practise many connections are so fast now that hosting in the U.S. makes little to no difference to the perceived connection speed here in the U.K. | **What kind of web hosting would be best for a project like this?**
You require nothing out of the ordinary. With your budget being a concern, any reliable shared hosting provider would be fine. There are many from which to choose (as you have noted) and there is no absolute answer.
Finding the right host for you is like finding any service provider that is right: read reviews, examine testimonials, seek recommendations from those whose opinions you trust, ask potential hosts.
Given your budget concerns, consider [Hosting Reborn pay-as-you-go hosting](http://hostingreborn.com). Through only paying for the storage and bandwidth you use, your costs and start low and will grow only in proportion to your popularity.
Disclaimer: I own and operate Hosting Reborn, I believe it is a good fit but I will be unavoidably biased to some degree.
**My company is based in the UK, how important is it for me to use UK based hosting?**
For you:
You may wish to be able to contact your host during the same office hours as those that you keep; you may run into issues tax considerations when you reach a certain scale (pure speculation).
For your users:
You should look at hosting your services as close as is feasible to your users. If your users will be predominantly UK-based, you will serve them best with UK-based hosting. If your users will be predominantly US-based, you will serve them best with US-based hosting.
Proximity to your users is a purely technical concern - the shorter the distance over which data must travel, the less time it will take. This is significant if serving Australian users from a US-based service. This is less significant if serving UK-based users from a German-based service. Proximity to your users will technically make a difference. Whether your users will notice is another matter.
**When it comes to bandwidth, how many downloads will bandwidth: 100GB get me?**
100GB is 102400MB. Considering your 3MB source code download, this will accommodate approximately 34,000 downloads. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Don't spend £250/year. Spend as little as possible, then scale as you grow. Two options to consider:
### 1. Use a source code hosting service such as github
[Github](https://github.com/) is a popular hosting service for the [git](http://git-scm.com/) version control system. In addition to [code hosting](https://github.com/features/hosting) and online code browsing, the long list of [features](https://github.com/features/projects) it offers includes team management, wikis, forums, and bug tracking.
Github is free for open-source projects, and you can even [host project pages](http://pages.github.com/) and entire websites with it. Since good open-source projects use version control anyway, I think it's worth taking the time to [learn git](http://book.git-scm.com/) just to take advantage of github.
You may also wish to consider other code hosting services, such as [Bitbucket,](https://bitbucket.org/) which uses the [Mercurial](http://mercurial.selenic.com/) version control system.
The great thing about services like these is that they encourage a community of active users to spring up around your project, because you've chosen to use a dedicated code hosting service that many are already familiar with and using in other projects they contribute to. Contributors can push fixes and new code to you, and you can review it and accept it into the official project. If I was starting an open-source project, github is what I'd use to promote and manage it.
### 2. Launch on cheap shared hosting
If you don't want to use a source code hosting service for some reason, I'd suggest shared hosting.
Your demands aren't particularly complicated and, although you don't state how big the project is in terms of userbase and expected traffic, it sounds like you don't need a VPS unless you plan to host your own source repositories. I'd suggest a cheap shared hosting package such as the 'Baby Plan' from [Hostgator,](http://www.hostgator.com/shared.shtml) which would cost $95.52 (approx £59) a year if you sign up for 12 months (and less if you sign up for a two or three -year term).
This allows you to host multiple domains and gives you an 'unlimited' amount of disk space and bandwidth. (If you read the fine print it turns out that 'unlimited' actually means limited, but only if you abuse their terms of service by, for example, hosting illegal downloads or large files that become very popular.)
Finding U.K. hosting companies who compete with U.S. shared hosting services on features and price is very difficult, unfortunately, and they are often many times more expensive. For this reason I tend to host my projects with U.S. companies now, even though I'd like to support British ones. I can recommend both [34sp.com](http://34sp.com) and [OpenmindHosting,](http://www.openmindhosting.co.uk/) but their basic packages support a limited number of domains (one for 34sp, two for Openmind) and their bandwidth/storage features aren't as generous, so you may find yourself paying for add-on domains and bandwidth faster than you would with a U.S. service.
Some people will tell you that you should host in the U.K. if most of your users are in the U.K., but in practise many connections are so fast now that hosting in the U.S. makes little to no difference to the perceived connection speed here in the U.K. | Check out <http://www.rshosting.com> or <http://www.rshosting.co.uk>
I have been their customer for almost a couple of years now and have been very satisfied with the level of web hosting services and support I have received from them. Decent website uptime, and fast connectivity to their servers and support is a key point that makes customers like us even more happy and satisfied. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | **What kind of web hosting would be best for a project like this?**
You require nothing out of the ordinary. With your budget being a concern, any reliable shared hosting provider would be fine. There are many from which to choose (as you have noted) and there is no absolute answer.
Finding the right host for you is like finding any service provider that is right: read reviews, examine testimonials, seek recommendations from those whose opinions you trust, ask potential hosts.
Given your budget concerns, consider [Hosting Reborn pay-as-you-go hosting](http://hostingreborn.com). Through only paying for the storage and bandwidth you use, your costs and start low and will grow only in proportion to your popularity.
Disclaimer: I own and operate Hosting Reborn, I believe it is a good fit but I will be unavoidably biased to some degree.
**My company is based in the UK, how important is it for me to use UK based hosting?**
For you:
You may wish to be able to contact your host during the same office hours as those that you keep; you may run into issues tax considerations when you reach a certain scale (pure speculation).
For your users:
You should look at hosting your services as close as is feasible to your users. If your users will be predominantly UK-based, you will serve them best with UK-based hosting. If your users will be predominantly US-based, you will serve them best with US-based hosting.
Proximity to your users is a purely technical concern - the shorter the distance over which data must travel, the less time it will take. This is significant if serving Australian users from a US-based service. This is less significant if serving UK-based users from a German-based service. Proximity to your users will technically make a difference. Whether your users will notice is another matter.
**When it comes to bandwidth, how many downloads will bandwidth: 100GB get me?**
100GB is 102400MB. Considering your 3MB source code download, this will accommodate approximately 34,000 downloads. | First of all I will request you to check reviews of the company you select, Presently I am using UK web Hosting <http://wwww.webhost.uk.net> , I have used there service for 3 years and they are fantastic in terms of support and service. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Don't spend £250/year. Spend as little as possible, then scale as you grow. Two options to consider:
### 1. Use a source code hosting service such as github
[Github](https://github.com/) is a popular hosting service for the [git](http://git-scm.com/) version control system. In addition to [code hosting](https://github.com/features/hosting) and online code browsing, the long list of [features](https://github.com/features/projects) it offers includes team management, wikis, forums, and bug tracking.
Github is free for open-source projects, and you can even [host project pages](http://pages.github.com/) and entire websites with it. Since good open-source projects use version control anyway, I think it's worth taking the time to [learn git](http://book.git-scm.com/) just to take advantage of github.
You may also wish to consider other code hosting services, such as [Bitbucket,](https://bitbucket.org/) which uses the [Mercurial](http://mercurial.selenic.com/) version control system.
The great thing about services like these is that they encourage a community of active users to spring up around your project, because you've chosen to use a dedicated code hosting service that many are already familiar with and using in other projects they contribute to. Contributors can push fixes and new code to you, and you can review it and accept it into the official project. If I was starting an open-source project, github is what I'd use to promote and manage it.
### 2. Launch on cheap shared hosting
If you don't want to use a source code hosting service for some reason, I'd suggest shared hosting.
Your demands aren't particularly complicated and, although you don't state how big the project is in terms of userbase and expected traffic, it sounds like you don't need a VPS unless you plan to host your own source repositories. I'd suggest a cheap shared hosting package such as the 'Baby Plan' from [Hostgator,](http://www.hostgator.com/shared.shtml) which would cost $95.52 (approx £59) a year if you sign up for 12 months (and less if you sign up for a two or three -year term).
This allows you to host multiple domains and gives you an 'unlimited' amount of disk space and bandwidth. (If you read the fine print it turns out that 'unlimited' actually means limited, but only if you abuse their terms of service by, for example, hosting illegal downloads or large files that become very popular.)
Finding U.K. hosting companies who compete with U.S. shared hosting services on features and price is very difficult, unfortunately, and they are often many times more expensive. For this reason I tend to host my projects with U.S. companies now, even though I'd like to support British ones. I can recommend both [34sp.com](http://34sp.com) and [OpenmindHosting,](http://www.openmindhosting.co.uk/) but their basic packages support a limited number of domains (one for 34sp, two for Openmind) and their bandwidth/storage features aren't as generous, so you may find yourself paying for add-on domains and bandwidth faster than you would with a U.S. service.
Some people will tell you that you should host in the U.K. if most of your users are in the U.K., but in practise many connections are so fast now that hosting in the U.S. makes little to no difference to the perceived connection speed here in the U.K. | I would recommend [reliablesite](http://www.reliablesite.net/v4/web-hosting.aspx), it's much lower than your budget, 100 GB of bandwidth, and rock solid. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Go with [Total Choice Hosting](http://totalchoicehosting.com/). They have awesome support and with your budget you can afford **two** of their *Gold* plan which gives you 1 TB of bandwidth.
You probably do not need that much even unless you product is hugely popular. You can even get away with buying one plan (saving half the cost) there if you make one site a subdomain of the other. I'd start with the *Silver* plan even for 2 x $55 /year. You can always upgrade and you'll get an email alert when you got close to your bandwidth limit.
The location of your service is not that important. There is an advantage to being physically closer to your target customers but it is usually very small unless dealing with high-bandwidth data such as video. | First of all I will request you to check reviews of the company you select, Presently I am using UK web Hosting <http://wwww.webhost.uk.net> , I have used there service for 3 years and they are fantastic in terms of support and service. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | **What kind of web hosting would be best for a project like this?**
You require nothing out of the ordinary. With your budget being a concern, any reliable shared hosting provider would be fine. There are many from which to choose (as you have noted) and there is no absolute answer.
Finding the right host for you is like finding any service provider that is right: read reviews, examine testimonials, seek recommendations from those whose opinions you trust, ask potential hosts.
Given your budget concerns, consider [Hosting Reborn pay-as-you-go hosting](http://hostingreborn.com). Through only paying for the storage and bandwidth you use, your costs and start low and will grow only in proportion to your popularity.
Disclaimer: I own and operate Hosting Reborn, I believe it is a good fit but I will be unavoidably biased to some degree.
**My company is based in the UK, how important is it for me to use UK based hosting?**
For you:
You may wish to be able to contact your host during the same office hours as those that you keep; you may run into issues tax considerations when you reach a certain scale (pure speculation).
For your users:
You should look at hosting your services as close as is feasible to your users. If your users will be predominantly UK-based, you will serve them best with UK-based hosting. If your users will be predominantly US-based, you will serve them best with US-based hosting.
Proximity to your users is a purely technical concern - the shorter the distance over which data must travel, the less time it will take. This is significant if serving Australian users from a US-based service. This is less significant if serving UK-based users from a German-based service. Proximity to your users will technically make a difference. Whether your users will notice is another matter.
**When it comes to bandwidth, how many downloads will bandwidth: 100GB get me?**
100GB is 102400MB. Considering your 3MB source code download, this will accommodate approximately 34,000 downloads. | Check out <http://www.rshosting.com> or <http://www.rshosting.co.uk>
I have been their customer for almost a couple of years now and have been very satisfied with the level of web hosting services and support I have received from them. Decent website uptime, and fast connectivity to their servers and support is a key point that makes customers like us even more happy and satisfied. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | Don't spend £250/year. Spend as little as possible, then scale as you grow. Two options to consider:
### 1. Use a source code hosting service such as github
[Github](https://github.com/) is a popular hosting service for the [git](http://git-scm.com/) version control system. In addition to [code hosting](https://github.com/features/hosting) and online code browsing, the long list of [features](https://github.com/features/projects) it offers includes team management, wikis, forums, and bug tracking.
Github is free for open-source projects, and you can even [host project pages](http://pages.github.com/) and entire websites with it. Since good open-source projects use version control anyway, I think it's worth taking the time to [learn git](http://book.git-scm.com/) just to take advantage of github.
You may also wish to consider other code hosting services, such as [Bitbucket,](https://bitbucket.org/) which uses the [Mercurial](http://mercurial.selenic.com/) version control system.
The great thing about services like these is that they encourage a community of active users to spring up around your project, because you've chosen to use a dedicated code hosting service that many are already familiar with and using in other projects they contribute to. Contributors can push fixes and new code to you, and you can review it and accept it into the official project. If I was starting an open-source project, github is what I'd use to promote and manage it.
### 2. Launch on cheap shared hosting
If you don't want to use a source code hosting service for some reason, I'd suggest shared hosting.
Your demands aren't particularly complicated and, although you don't state how big the project is in terms of userbase and expected traffic, it sounds like you don't need a VPS unless you plan to host your own source repositories. I'd suggest a cheap shared hosting package such as the 'Baby Plan' from [Hostgator,](http://www.hostgator.com/shared.shtml) which would cost $95.52 (approx £59) a year if you sign up for 12 months (and less if you sign up for a two or three -year term).
This allows you to host multiple domains and gives you an 'unlimited' amount of disk space and bandwidth. (If you read the fine print it turns out that 'unlimited' actually means limited, but only if you abuse their terms of service by, for example, hosting illegal downloads or large files that become very popular.)
Finding U.K. hosting companies who compete with U.S. shared hosting services on features and price is very difficult, unfortunately, and they are often many times more expensive. For this reason I tend to host my projects with U.S. companies now, even though I'd like to support British ones. I can recommend both [34sp.com](http://34sp.com) and [OpenmindHosting,](http://www.openmindhosting.co.uk/) but their basic packages support a limited number of domains (one for 34sp, two for Openmind) and their bandwidth/storage features aren't as generous, so you may find yourself paying for add-on domains and bandwidth faster than you would with a U.S. service.
Some people will tell you that you should host in the U.K. if most of your users are in the U.K., but in practise many connections are so fast now that hosting in the U.S. makes little to no difference to the perceived connection speed here in the U.K. | First of all I will request you to check reviews of the company you select, Presently I am using UK web Hosting <http://wwww.webhost.uk.net> , I have used there service for 3 years and they are fantastic in terms of support and service. |
14,802 | >
> **Possible Duplicate:**
>
> [How to find web hosting that meets my requirements?](https://webmasters.stackexchange.com/questions/20838/how-to-find-web-hosting-that-meets-my-requirements)
>
>
>
I am working on a project that will be released as open source in the latter part of the year. I am starting to think about how the accompanying website will be hosted and would greatly appreciate some advice.
**Requirements:**
*Domain #1*
* Information about the project itself (just pages and pictures).
* Documentation / Wiki
* Forums
* Download of project source (approx 3MB archive)
* Download of various themes and community contributed content (est. sizes 10KB ~ 512KB).
*Domain #2*
* Primary company website that offers products and services. This will be primarily pictures and pages.
What kind of web hosting would be best for a project like this. I am working on a very tight budget and can only afford to spend up to £250 per year for hosting this. I was considering using some sort of VPS hosting.
I found the following companies which seem to offer around this price range, but they have very mixed reviews.
* <http://www.webhosting.uk.com/>
* <http://www.eukhost.com/>
* Godaddy UK
* uk2 . net
My company is based in the UK, how important is it for me to use UK based hosting? There are plenty of overseas hosting companies that are considerably cheaper.
When it comes to bandwidth, how many downloads will **bandwidth: 100GB** get me?
Any advice would be very greatly appreciated! | 2011/06/03 | [
"https://webmasters.stackexchange.com/questions/14802",
"https://webmasters.stackexchange.com",
"https://webmasters.stackexchange.com/users/8022/"
] | I would recommend [reliablesite](http://www.reliablesite.net/v4/web-hosting.aspx), it's much lower than your budget, 100 GB of bandwidth, and rock solid. | Check out <http://www.rshosting.com> or <http://www.rshosting.co.uk>
I have been their customer for almost a couple of years now and have been very satisfied with the level of web hosting services and support I have received from them. Decent website uptime, and fast connectivity to their servers and support is a key point that makes customers like us even more happy and satisfied. |
322,233 | I am writing the figure of £1,000,000 in a presentation but finding that my style guide clashes with what looks right.
* 'Million' must be spelled out.
* '£' must be used instead of 'pounds'.
* Numbers one to ten must be written out and not expressed in numerals.
As such, it appears that I should present *£1,000,000* as *£one million* but this looks so odd. Any suggestions? | 2016/04/28 | [
"https://english.stackexchange.com/questions/322233",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/44665/"
] | I have worked for a number of UK academic publishers and they all have'£1 million' (with lowercase m) as their house style. Occasionally, I have seen 1 million GBP. Incidentally, most publishers prefer numbers up to ten (or twenty) to be spelled out. This rule is usually 'bent' if it would create sentences such as: ' ... between eight and 12 people'. The guiding principle is to avoid cluttering the page with numerals whilst making sure that readers don't have to wade through too many spelled-out numbers. It's all to do with ease of reading as well as consistency. | I think in this case £1 million would be the correct form. |
137,910 | After [repairing some damage to a wall](https://diy.stackexchange.com/questions/135851/how-to-fix-damaged-wall-after-peeling-off-hook), I need to re-paint the repaired area to match the rest of the wall.
I have been given the wrong colour by a shop assistant and it has made it worse (See photo). The paint he's given me is British Standard white, which looks like cream and not white at all.
The one I got is no good either (pure brilliant white, gloss high sheen), because it's too "shiny" and you can see it's a different colour if you don't look straight at the wall.
[](https://i.stack.imgur.com/FKrav.jpg)
I was hoping 1) to get some advice on the "gloss" or "sheen" issue (I don't even know what that means), 2) again, how do people figure out which shade of white without having somebody physically there? | 2018/04/25 | [
"https://diy.stackexchange.com/questions/137910",
"https://diy.stackexchange.com",
"https://diy.stackexchange.com/users/83703/"
] | >
> **I was hoping 1) to get some advice on the "gloss" or "sheen" issue (I don't even know what that means),**
>
>
>
As well as the colour, the appearance of a painted wall is affected by how smooth and reflective the paint surface is.
Paints come in matt, silk, gloss and other degrees of shinyness. You probably want a matt finish as that is what a high proportion of British homes use on their walls. Note that people usually use gloss finish on woodwork.
You should expect to find matt emulsion on your walls, gloss paint is usually oil-based and intended for woodwork, not for painting on plastered masonry walls.
>
> **2) again, how do people figure out which shade of white without having somebody physically there?**
>
>
>
By taking a sample to the store and asking them to match it. Stores often have a machine for mixing paints to an exact match. This can be needed because paint colours are fashion items and may become discontinued. Also, painted colours can change over time due to exposure to sunlight and other influences. Unfortunately, taking a chunk of your wall to a store is impractical. You may be able to scrape off a sample if the paint, or a layer underneath, hasn't fully adhered. A chip roughly one inch square will be enough.
or
By buying test pots until you find an acceptable match. | Sounds like you need a *matt* finish, not *gloss high sheen*. Or maybe a *silk* finish which is shinier than matt but not as shiny as high sheen. See [this Dulux help page](https://www.dulux.co.uk/en/decorating-tips-and-advice/dr-dulux-paint-finishes-explained) for more details. It could also be down to the way you applied the paint: patching up using a paint brush leaves a different texture to using a roller.
I assume you've let it dry completely. If not you might find that the colour changes as it dries.
If you can't figure it out, find a shop where they actually know about paint, tell them *exactly* what you were given, describe why it wasn't suitable.
Or keep trying tester pots until you find the right one.
Since you don't have the original paint but really want an even finish, you might need to paint the whole wall. |
137,910 | After [repairing some damage to a wall](https://diy.stackexchange.com/questions/135851/how-to-fix-damaged-wall-after-peeling-off-hook), I need to re-paint the repaired area to match the rest of the wall.
I have been given the wrong colour by a shop assistant and it has made it worse (See photo). The paint he's given me is British Standard white, which looks like cream and not white at all.
The one I got is no good either (pure brilliant white, gloss high sheen), because it's too "shiny" and you can see it's a different colour if you don't look straight at the wall.
[](https://i.stack.imgur.com/FKrav.jpg)
I was hoping 1) to get some advice on the "gloss" or "sheen" issue (I don't even know what that means), 2) again, how do people figure out which shade of white without having somebody physically there? | 2018/04/25 | [
"https://diy.stackexchange.com/questions/137910",
"https://diy.stackexchange.com",
"https://diy.stackexchange.com/users/83703/"
] | >
> **I was hoping 1) to get some advice on the "gloss" or "sheen" issue (I don't even know what that means),**
>
>
>
As well as the colour, the appearance of a painted wall is affected by how smooth and reflective the paint surface is.
Paints come in matt, silk, gloss and other degrees of shinyness. You probably want a matt finish as that is what a high proportion of British homes use on their walls. Note that people usually use gloss finish on woodwork.
You should expect to find matt emulsion on your walls, gloss paint is usually oil-based and intended for woodwork, not for painting on plastered masonry walls.
>
> **2) again, how do people figure out which shade of white without having somebody physically there?**
>
>
>
By taking a sample to the store and asking them to match it. Stores often have a machine for mixing paints to an exact match. This can be needed because paint colours are fashion items and may become discontinued. Also, painted colours can change over time due to exposure to sunlight and other influences. Unfortunately, taking a chunk of your wall to a store is impractical. You may be able to scrape off a sample if the paint, or a layer underneath, hasn't fully adhered. A chip roughly one inch square will be enough.
or
By buying test pots until you find an acceptable match. | In the USA, big box home stores have little slips of paper that have the name of the color and an example of the color. We used that to successfully match paint. |
39,646 | So I was asked to DM for a group in 4th edition. I live 2 hours away so we are doing 1 12-hour session a month. We just had our first session and I made it clear that I was doing and am willing to do some atypical things. I have only DM'd once before and have only mild familiarity with D&D 4th ed (still more than any of the PCs, 2 of the 5 are 1st-timers).
Anyway, I think that is all important background for understanding the situation I got myself into. During character creation, one of my PCs asked if he could make dual-wielding 2 shields work... and I said yes. So he is a Dwarven Cleric using 2 heavy shields and wears his holy implement about his neck.
Basically, I was thinking that (I may have been wrong about this) back in 3.5 shield bonuses to AC did stack. Also, logically, if you carry 2 shields you would be harder to hit than with 1... After doing some research on these forums I am now gaining the understanding that in 4E that bonuses of the same type NEVER stack (unless untyped, from the same source).
My first question is: What are my options for the best way to handle this situation?
Related question/clarification: Without going back on what I said while he was creating his character, is there a way to make there be some kind of penalty that balances out the extra +2 AC I gave him?
Also, he took a feat to mitigate or minimize (I do not remember which one and do not have his character sheet in front of me) the penalty from wielding shields. Can such a bonus reduce the penalty from a -1 to 0?
Basically... I realize I made a mistake per the written rules due to my own lack of familiarity with the rules. I want to know what my options are but also I do not want to upset my player too much by going back and changing what I did. Also, I have possibly made other such variances from the rules based on what makes sense logically...
The problem for me now is I want there to be some kind of balance in place to mitigate the bonus. I mean... he did take an extra feat to reduce the penalty. But he is still essentially getting +2 AC for free in exchange for not holding a weapon. One thing I have thought of so far is verifying the powers he chose do not have the "Weapon" keyword and only have the "implement" keyword. Also, he will never be able to wear an amulet b/c he needs his neck slot for the implement if his hands are full.
I would appreciate any advice the community here can give me. Thanks! | 2014/06/06 | [
"https://rpg.stackexchange.com/questions/39646",
"https://rpg.stackexchange.com",
"https://rpg.stackexchange.com/users/13578/"
] | Three things you can, and should do:
* Admit your mistake. Tell the player, "hey, I misunderstood the shield rule here, you can weild two, the second just doesn't do you any good." It's important to own up to this asap.
* Let him rebuild his character from the ground up. You've clearly found out his character concept no longer works the way he wants to. Offer him the opportunity to rebuild the character completely with level appropriate gear etc.
* Offer him the Testudo Shield fighter as an option. If he loves the concept enough to keep it, even without the AC bonus, MCing fighter and taking the Snapping testudo paragon path would be the best option. This is kind of a crummy option for a PP, but it's a cool concept.
* If you decide to allow this, change the bonus type on the second shield. My recommendation would be to allow him to take the homebrew feat "two shield fighting" that allows him to use the shield bonus of the second shield as a feat bonus to AC (or AC and Ref, and additional defenses if he spends the feats on them). This is pretty fair, it's a bit high in heroic, on par in paragon, and probably a retrain candidate in epic. Check his final AC, but it should be about the same as a pally in full plate with a heavy shield. Make sure the penalties stack and offer a feat to remove one at heroic (he can take a feat to remove both in paragon).
All this to say, own up to your mistake, give him an opportunity to fix it. But as a note, if you have DDI, build your characters in the builder, it does all the math for you and it will catch a lot of these bonus stacking issues your pointing to.
Mostly though, just talk to your player, explain your mistake and see what you two can work out. Communication is good and your both learning the game, keep it honest, and keep talking. | waX eagle makes some great points. I would like to add one.
You can allow the PC to use two shields, and stack the bonuses and penalties. Just be aware of all of them.
* Although he has his holy symbol around his neck, he still needs a
free hand in order to use any spell or ability with a somatic (S)[gesturing]
component. Wielding two shields would not allow that.
* He is doing no damage in melee apart from a shield bash, and I'm not
entirely sure if that's even possible without a feat in 4e.
* He also either could not use abilities with the "weapon" keyword or treat the shield as an improvised weapon and take -4 to attacks.
* His armor check penalties from both shields will stack (penalties always stack), and he also cannot use any skill that would require two hands.
I'm sure there are more, but if you want to allow him to do it, then do it right. Simply not doing much damage in combat may be enough for the others to convince him to trade a shield for a weapon. Force him to take the move action to put away a shield in order to cast, and then another move action next round to reequip that shield. When faced with the full concept of the penalties involved, he may decide to go with another option. |
295,348 | Does anyone know if I can install normal 2.5" SATA drives inside an HP DL360 G5 server? Right now it has 6 72GB SAS drives. I am looking for raw storage for my files SAS performance in not required. | 2011/07/29 | [
"https://serverfault.com/questions/295348",
"https://serverfault.com",
"https://serverfault.com/users/62376/"
] | SATA2 disks should be compatible with the Smart Array P400i that comes with your server (or any other SAS controller, for the matter), although probably not with stellar performance as others have noted. But keep in mind that not all SATA disks are suitable for use with RAID because of the infamous Time-Limited Error Recovery parameter (TLER for WD drivers, also called ERC by Seagate and CCTL by others). Disks not prepared for RAID configurations will frequently drop from the array. | Few times I had a problem with SATA drives inside Proliant servers where under Linux drives were detected as PATA.
The solution was to turn off Auto mode for hdd in BIOS settings... |
295,348 | Does anyone know if I can install normal 2.5" SATA drives inside an HP DL360 G5 server? Right now it has 6 72GB SAS drives. I am looking for raw storage for my files SAS performance in not required. | 2011/07/29 | [
"https://serverfault.com/questions/295348",
"https://serverfault.com",
"https://serverfault.com/users/62376/"
] | SATA2 disks should be compatible with the Smart Array P400i that comes with your server (or any other SAS controller, for the matter), although probably not with stellar performance as others have noted. But keep in mind that not all SATA disks are suitable for use with RAID because of the infamous Time-Limited Error Recovery parameter (TLER for WD drivers, also called ERC by Seagate and CCTL by others). Disks not prepared for RAID configurations will frequently drop from the array. | You should be able use any SATA drive, but I'd consult the bare drive model numbers on HP's *[Hard Drive Model Number Matrix](http://h20565.www2.hpe.com/hpsc/doc/public/display?sp4ts.oid=408482&docId=emr_na-c00305257&docLocale=en_US)* before you buy. That'll give you a strong indication of which drives will work well in your server, and point you to any special firmware.
Old question, I know, but it took me ages to find that list. |
295,348 | Does anyone know if I can install normal 2.5" SATA drives inside an HP DL360 G5 server? Right now it has 6 72GB SAS drives. I am looking for raw storage for my files SAS performance in not required. | 2011/07/29 | [
"https://serverfault.com/questions/295348",
"https://serverfault.com",
"https://serverfault.com/users/62376/"
] | SATA drives always work when connected to a SAS controller, by definition.
Minor correction - the SATA drives must be SATA2 or newer (3Gbps) -- from comment below. | You should be able use any SATA drive, but I'd consult the bare drive model numbers on HP's *[Hard Drive Model Number Matrix](http://h20565.www2.hpe.com/hpsc/doc/public/display?sp4ts.oid=408482&docId=emr_na-c00305257&docLocale=en_US)* before you buy. That'll give you a strong indication of which drives will work well in your server, and point you to any special firmware.
Old question, I know, but it took me ages to find that list. |
295,348 | Does anyone know if I can install normal 2.5" SATA drives inside an HP DL360 G5 server? Right now it has 6 72GB SAS drives. I am looking for raw storage for my files SAS performance in not required. | 2011/07/29 | [
"https://serverfault.com/questions/295348",
"https://serverfault.com",
"https://serverfault.com/users/62376/"
] | SATA drives always work when connected to a SAS controller, by definition.
Minor correction - the SATA drives must be SATA2 or newer (3Gbps) -- from comment below. | Few times I had a problem with SATA drives inside Proliant servers where under Linux drives were detected as PATA.
The solution was to turn off Auto mode for hdd in BIOS settings... |
88,371 | I am a GIS Analyst with one years experience and no idea where to begin with professional development. I'm competent with the ArcGIS platform, but I am not too familiar with its administration processes. I can work with basic Python programming. I'm taking a course in SQL next week, and I'm pretty terrible with web services.
Where/How/What should i focus on learning to step up to the next level in a GIS career. | 2014/03/03 | [
"https://gis.stackexchange.com/questions/88371",
"https://gis.stackexchange.com",
"https://gis.stackexchange.com/users/24579/"
] | You've really kind of answered your own question here, but I'll elaborate for the purposes of canonism. I'll provide you with some ideas based off of specific skills that I often see requested at the [GIS jobs clearinghouse](http://gjc.org). You can pretty much go two separate routes here (or both simultaneously) and both are pretty wide open:
**Building your analysis skills**
---------------------------------
* Learn about rasters. Zonal statistics, DEM/DSM's, viewshed analysis, local statistics, hydrologic modeling are all branches of [Geostatistics](http://en.wikipedia.org/wiki/Geostatistics), knowledge of which is important for analysis. The [Geospatial Data Abstraction Library](http://www.gdal.org) is a great repository for useful tools and information.
* Learn about remote sensing. I see plenty of job postings asking for expertise in analyzing and managing LiDAR datasets.
* Become familiar with geocoding, pretty much any entity that keeps address data is usually interested in utilizing geocoding.
**Building your GIS Developer skills**
--------------------------------------
* Python, Python, Python. You'll hear it over and over again here. This is **the** GIS scripting language. I used the free courseware from [Udacity](https://www.udacity.com/course/cs101) to learn Python, which I think they do a pretty good job of, but I suggest instead [Learn Python the Hard Way](http://learnpythonthehardway.org/).
* If you want to stick to the ESRI suite, learn **C#**. At the very least, Microsoft is sticking with this as its go-to language for a very long time. It's future is more certain than the .NET alternative, **VB.NET**.
* Learn SQL. For the most part, basic SQL is standardized across all major RDBMS platforms, with all the extra bells and whistles integrated into the special SQL languages such as T-SQL and PL/SQL. Don't bother with all that yet, if you get the basic standardized language down, you'll cover 80% of the things you need to do with it and the other 20% you can pick up as you need. [W3C](http://www.w3schools.com/sql/) has some great simple and straightforward samples to get you started here.
* Learn database architecture. Understand the concepts of normalization and relationships, what primary and foreign keys are, and how to build a database. There are a lot of jobs that involve structuring your GIS data. In the same vein, understanding the underlying structure of geodatabases is key if you want to become a developer in the ESRI suite of products.
* Learn web development. More importantly, learn Javascript. This is a rapidly growing field. I see tons of job postings from businesses that want web GIS applications. There are a few different API's you can familiarize yourself with. If you want to go open source, two popular ones are [OpenLayers](http://openlayers.org/) and [leaflet.js](http://leafletjs.com/). If you want to stick with ESRI, [I wouldn't go with Flash or Silverlight API's](https://gis.stackexchange.com/questions/6763/arcgis-web-apis-what-are-the-differences), I would use Javascript and HTML only. | I honestly believe that GIS is a fast growing and limitless field. Conor has answered pretty much most of what I would say. I think a programming/scripting/database/analysis background will get you far.
But, ask yourself what it is that you want to be doing. Is there a field that interests you other than GIS? So many agencies are new at GIS and with Google Maps and Earth at everyone's fingertips, many more are ready to enter into the GIS world. Waterways, park services, environmental protection, utilities, streets, universities, hospitals, military, real estate, community planning, etc. are all using GIS technologies. Finding a niche that is both exciting and stimulating to you is a possibility with GIS. |
8,995,078 | Could someone please tell any resources or links to learn usage of Mercurial with Visual FoxPro 9.0? | 2012/01/24 | [
"https://Stackoverflow.com/questions/8995078",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/1152568/"
] | Ganapathy,
The white paper from my *VFP Version Control with Mercurial* session at Southwest Fox 2011 is now available for download as a PDF from the developers page of my website at <http://www.ita-software.com/foxpage.aspx>. The direct link to the paper is <http://bit.ly/IgXzhM>. This is introductory material intended as a jump start for VFP developers who have never used Mercurial, or perhaps not even any distributed version control system (DVCS). I hope you find it useful.
-Rick | Rick Borup (http://www.ita-software.com/foxpage.aspx) presented a pre-conference session on this topic at Southwest Fox 2011. He wrote a terrific 59-page paper for it.
I don't know whether he has published that paper elsewhere.
Tamar |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | If the question is really to help them avoid getting infected again, and it is a computer for the kids, I recommend you to do some research on deploying [Windows SteadyState](http://www.microsoft.com/windows/products/winfamily/sharedaccess/default.mspx) for that particular computer. | One of my standard answers to this kind of question is to use [OpenDNS](http://en.wikipedia.org/wiki/OpenDNS), because it allows users to block sites that are known to host malicious software from the router so that it keeps all connected PCs clean.
If they're the kind of users who won't renew [AV software](http://en.wikipedia.org/wiki/Antivirus_software) for expense reasons they are better off with a current free AV solution than an out-of-date commercial one. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | Run the web browser in an isolated environment (e.g. with **[Sandboxie](http://www.sandboxie.com/)**) and be done with malware attacks, 'accidental' toolbar installations, and the like.
PS: In the registered version you can force a program to run always inside the sandbox. If system memory is not a scarce commodity, you might as well use a RAM disk as 'container'. | The top rated advice here is all good, but there is no perfect solution. Not yet covered:
I would emphasize training above all else. Most spyware / adware is invited into the computer. Whatever your computer / OS & your religious beliefs about them, your web browser is your weakest point in the system. Surfing the web is analogous to driving randomly around town asking strangers if they want a ride. Keep in mind most people using Outlook have HTML mail enabled by default, effectively turning their email client into a web browser.
Consider using Firefox and installing [NoScript](https://addons.mozilla.org/addon/722). It's a solid plugin that by default prevents all scripts running. It's easy to add exceptions for sites you trust.
All the machines in my house were Windows NT / XP / Vista for years. I finally shifted to Ubuntu to simplify my life. I was tired of being the family systems administrator. I picked Ubuntu largely for these reasons:
1. No root account by default
2. No open ports by default
3. Huge software repository
4. Easy updates with a long support cycle
5. My favorite price. Free. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | If the question is really to help them avoid getting infected again, and it is a computer for the kids, I recommend you to do some research on deploying [Windows SteadyState](http://www.microsoft.com/windows/products/winfamily/sharedaccess/default.mspx) for that particular computer. | The top rated advice here is all good, but there is no perfect solution. Not yet covered:
I would emphasize training above all else. Most spyware / adware is invited into the computer. Whatever your computer / OS & your religious beliefs about them, your web browser is your weakest point in the system. Surfing the web is analogous to driving randomly around town asking strangers if they want a ride. Keep in mind most people using Outlook have HTML mail enabled by default, effectively turning their email client into a web browser.
Consider using Firefox and installing [NoScript](https://addons.mozilla.org/addon/722). It's a solid plugin that by default prevents all scripts running. It's easy to add exceptions for sites you trust.
All the machines in my house were Windows NT / XP / Vista for years. I finally shifted to Ubuntu to simplify my life. I was tired of being the family systems administrator. I picked Ubuntu largely for these reasons:
1. No root account by default
2. No open ports by default
3. Huge software repository
4. Easy updates with a long support cycle
5. My favorite price. Free. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | Best solution I found: gave my kids a Mac mini with parental controls on... No virus problems, they can't really install any crapware even if their friends point them to some. Also, game choice is limited, which is a big plus. With that, they spend much more time exploring the web, experimenting with making music or videos than playing games.
Plus, the mini makes 0 noise and fits anywhere, it's perfect for a bedroom.
Kids love it too, don't miss games much, they prefer to play on the Wii anyway...
So, my advice: forget XP, it's a lost cause. There are much better things out there.
If you want to reuse you machine and don't want to buy a new one, install Linux on it. The desktop effects on the new Ubuntu are amazing (see <http://www.youtube.com/watch?v=dlhD_4pK4MM> for example), kids always get excited with that. Plus they'll have tons of things to explore with Linux, much more interesting than old grandpa's Windows XP clunker :)
With linux, you're basically also virtually guaranteed to remain crapware-free.
I'm moving away slowly from Windows (started late last year), and I am very glad I did so far, I refuse to waste any more time fixing Windows installs. | Ask your friend to browse/ do his work in a virtual machine (VM), and prepare a backup image so that whenever that VM is infected, you can always delete it and restore from the backup image.
Or, maybe you can use [Sanboxie](http://www.sandboxie.com/) to [isolate the browsing and BitTorrent software](http://www.sandboxie.com/index.php?SandboxMenu#create). |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | Here is a simple answer:
>
> Avoid using the Internet.
>
>
>
And another simple answer:
>
> Don't install *anything*.
>
>
> | Exactly what do your friend and his family use the computer for? It might be that they can do just fine with Ubuntu or some other user-friendly Linux distro, and that would drastically cut down on these problems.
There are mail clients, web browsers, and office suites suitable for home use included in Ubuntu. It would very likely annoy the children by not running games, but your friend might consider that a good idea.
It's very possible that your friend is using something that won't run on Ubuntu, and that there's no good replacement for, of course, and in that case you shouldn't change the OS. However, I know computer users that would be just as happy with it, and your friend might be one. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | * Have non-tech users accounts be non-admin
* Teach safe browsing habits
* Never download anything that isn't from an 'official' source
* Use Firefox/Chrome/Safari/Opera instead of Internet Explorer
* Run malware scans regularly
* Set Windows to update automatically
* Install virus protection and scan automatically/regularly
* Install a firewall
* And again, smart browsing habits.
For firewall, either don't use one (and use Windows Firewall instead) or install one free one, like ZoneAlarm.
Edit: I see in your question you mentioned expired anti virus. Use AVG instead. It's free and will never expire and updates automatically.
Edit2: As others have mentioned, you could install software that basically locks the computer down. I have to disagree with this. I would much rather take the time and teach the users (especially the children) about how to properly use the computer to the fullest, rather than block them out. | Here is a simple answer:
>
> Avoid using the Internet.
>
>
>
And another simple answer:
>
> Don't install *anything*.
>
>
> |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | * Have non-tech users accounts be non-admin
* Teach safe browsing habits
* Never download anything that isn't from an 'official' source
* Use Firefox/Chrome/Safari/Opera instead of Internet Explorer
* Run malware scans regularly
* Set Windows to update automatically
* Install virus protection and scan automatically/regularly
* Install a firewall
* And again, smart browsing habits.
For firewall, either don't use one (and use Windows Firewall instead) or install one free one, like ZoneAlarm.
Edit: I see in your question you mentioned expired anti virus. Use AVG instead. It's free and will never expire and updates automatically.
Edit2: As others have mentioned, you could install software that basically locks the computer down. I have to disagree with this. I would much rather take the time and teach the users (especially the children) about how to properly use the computer to the fullest, rather than block them out. | Ask your friend to browse/ do his work in a virtual machine (VM), and prepare a backup image so that whenever that VM is infected, you can always delete it and restore from the backup image.
Or, maybe you can use [Sanboxie](http://www.sandboxie.com/) to [isolate the browsing and BitTorrent software](http://www.sandboxie.com/index.php?SandboxMenu#create). |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | * Have non-tech users accounts be non-admin
* Teach safe browsing habits
* Never download anything that isn't from an 'official' source
* Use Firefox/Chrome/Safari/Opera instead of Internet Explorer
* Run malware scans regularly
* Set Windows to update automatically
* Install virus protection and scan automatically/regularly
* Install a firewall
* And again, smart browsing habits.
For firewall, either don't use one (and use Windows Firewall instead) or install one free one, like ZoneAlarm.
Edit: I see in your question you mentioned expired anti virus. Use AVG instead. It's free and will never expire and updates automatically.
Edit2: As others have mentioned, you could install software that basically locks the computer down. I have to disagree with this. I would much rather take the time and teach the users (especially the children) about how to properly use the computer to the fullest, rather than block them out. | Particularly if the main OS is Windows XP, I would recommend setting up a virtual machine ([VirtualBox](http://en.wikipedia.org/wiki/VirtualBox) is free and good) and putting a Linux distribution inside the VM. Do web browsing from Linux and run other programs from Windows.
You could also set up a dual boot - [Wubi](https://en.wikipedia.org/wiki/Wubi_(software)) is a dead simple way to install a Linux "virtual partition", but the VM makes it simpler to switch between operating systems.
While Windows Vista and Windows 7 can be very secure OSes, Windows XP has enough holes that trying to make it secure is very difficult. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | Ask your friend to browse/ do his work in a virtual machine (VM), and prepare a backup image so that whenever that VM is infected, you can always delete it and restore from the backup image.
Or, maybe you can use [Sanboxie](http://www.sandboxie.com/) to [isolate the browsing and BitTorrent software](http://www.sandboxie.com/index.php?SandboxMenu#create). | My issue is about having the kids grow up learning. SteadyState styled solutions, which so far sound like the most attractive, will either A) be a limitation to what the kids can learn, or B) will be worked around at some point by the kids. Either way, you're limiting the kids' ability to be become good computer users.
I'd recommend that you basically setup a state rollback that is voluntary, I don't know if SteadyState offers this choice. This is something you'd do from a safe start. You then teach the kids to do that, and explain to them why they need to, what they lose when they do it, and how to avoid having to do it. Additionally if it ever happens that your friend chooses to rollback, he should use the opportunity to show the kids what's wrong with the machine, theorize on why it happened, and have one of them pull the trigger on the rollback, while possibly letting them keep some of the misplaced files and such that invariably they will have and want to keep. |
43,461 | I recently reinstalled the OS (Windows XP Home) on a friend's heavily spyware/adware infected machine. It appears as though his kids (7 and 11 years I believe) were visiting sites that offered downloads for search bars, screensavers, and "cute" cartoony animations that anyone with safety in mind would never download.
Some of the concerns I noted on the machine were:
* The main account was Administrator
* Expired anti-virus software
* Lack of Windows updates
* Multiple firewalls installed
Basically, I'm looking for a guide for non tech-savvy users that would help them avoid getting infected again. | 2009/09/18 | [
"https://superuser.com/questions/43461",
"https://superuser.com",
"https://superuser.com/users/1469/"
] | Best solution I found: gave my kids a Mac mini with parental controls on... No virus problems, they can't really install any crapware even if their friends point them to some. Also, game choice is limited, which is a big plus. With that, they spend much more time exploring the web, experimenting with making music or videos than playing games.
Plus, the mini makes 0 noise and fits anywhere, it's perfect for a bedroom.
Kids love it too, don't miss games much, they prefer to play on the Wii anyway...
So, my advice: forget XP, it's a lost cause. There are much better things out there.
If you want to reuse you machine and don't want to buy a new one, install Linux on it. The desktop effects on the new Ubuntu are amazing (see <http://www.youtube.com/watch?v=dlhD_4pK4MM> for example), kids always get excited with that. Plus they'll have tons of things to explore with Linux, much more interesting than old grandpa's Windows XP clunker :)
With linux, you're basically also virtually guaranteed to remain crapware-free.
I'm moving away slowly from Windows (started late last year), and I am very glad I did so far, I refuse to waste any more time fixing Windows installs. | Particularly if the main OS is Windows XP, I would recommend setting up a virtual machine ([VirtualBox](http://en.wikipedia.org/wiki/VirtualBox) is free and good) and putting a Linux distribution inside the VM. Do web browsing from Linux and run other programs from Windows.
You could also set up a dual boot - [Wubi](https://en.wikipedia.org/wiki/Wubi_(software)) is a dead simple way to install a Linux "virtual partition", but the VM makes it simpler to switch between operating systems.
While Windows Vista and Windows 7 can be very secure OSes, Windows XP has enough holes that trying to make it secure is very difficult. |
87,971 | Help me complete this network.
I have a cable modem going to a switch. The switch has various devices connected to it. A few computers and a wireless router. I have a a number of computers connected to the wireless router wirelessly.
The devices connected to the switch together can communicate with each other. The devices connected wirelessly to the router can communicate with each other. But the wireless router devices can not communicate with the wired switch devices.
How do I make this one larger network? | 2009/12/26 | [
"https://superuser.com/questions/87971",
"https://superuser.com",
"https://superuser.com/users/8610/"
] | I suggest you use your Access Point as the main router/firewall between the modem and the switch:
Modem>AccessPoint>Switch>Clients ('Wired clients' connect to switch, 'Wireless clients' connect to Access Point through it's SSID. The Access Point will serve addresses via it's DHCP service to all your clients). This configuration will keep your inside clients safer and on the same network.
By the way, this probably belongs in superuser.com since sounds like this is a personal network. | If you want full communication between the wired and wireless devices, it is pretty simple.
* Shut off DHCP on the wireless router
* Connect wireless router to the switch using one of the wireless router's local ports (usually numbered 1-4, LAN, local, etc).
Right now you likely have the public port plugged in (marked Internet, WAN, External, etc) and so all of the wireless devices are hidden behind the router from your wired devices.
Also, are your wired devices getting IP addresses like 192.168.x.x, 10.x.x.x or 172.16.x.x? If they are getting addresses that don't start with one of those 3 sequences, then your devices are being exposed on public addresses (people on the internet can reach your individual computers).
If you are getting public IPs, I would plug the internet side of your wireless router to your cable modem and plug your network switch on the local side of the wireless router (and leave DHCP on). That will put all of your devices together behind the wireless router on private addresses. |
87,971 | Help me complete this network.
I have a cable modem going to a switch. The switch has various devices connected to it. A few computers and a wireless router. I have a a number of computers connected to the wireless router wirelessly.
The devices connected to the switch together can communicate with each other. The devices connected wirelessly to the router can communicate with each other. But the wireless router devices can not communicate with the wired switch devices.
How do I make this one larger network? | 2009/12/26 | [
"https://superuser.com/questions/87971",
"https://superuser.com",
"https://superuser.com/users/8610/"
] | I suggest you use your Access Point as the main router/firewall between the modem and the switch:
Modem>AccessPoint>Switch>Clients ('Wired clients' connect to switch, 'Wireless clients' connect to Access Point through it's SSID. The Access Point will serve addresses via it's DHCP service to all your clients). This configuration will keep your inside clients safer and on the same network.
By the way, this probably belongs in superuser.com since sounds like this is a personal network. | I agree with l0c0b0x. Also both the modem and the wireless router are probably running DHCP servers. You will want to turn one of them off, usually the easiest one to turn off is the one on the modem as not all wireless routers let you turn DHCP off. |
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