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 |
|---|---|---|---|---|---|
62,968,996 | I am in the process of adding an Identity Server 4 implementation to serve authentication and authorization for a ASP.NET Core Web API. Clients will be a native iOS app, and MVC web app and potentially an Angular SPA later down the line.
I am able to provide tokens on an « offline access » basis to the iOS client usin... | 2020/07/18 | [
"https://Stackoverflow.com/questions/62968996",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/6906697/"
] | >
> 1/ where should the registration of new users take place? The literature recommends that the IS4 server be limited to login and logout endpoints, for security purposes. Does that mean that the clients or the APIs should handle creation of users in the store? I thought the whole point of IS4 was that clients and AP... | I have thoughts as following:
---
* 1/ where should the registration of new users take place? The
literature recommends that the IS4 server be limited to login and
logout endpoints, for security purposes. Does that mean that the
clients or the APIs should handle creation of users in the store? I
thought the whole poi... |
727,679 | Why MIPS CPU has 32 registers in the register file? Could it be more or less? What's the impact if we modify the size of register file? | 2014/03/11 | [
"https://superuser.com/questions/727679",
"https://superuser.com",
"https://superuser.com/users/306919/"
] | MIPS is a "RISC" or "load-store" architecture.
RAM used to be as fast as CPUs. So people would write programs that would use RAM as intermediate or temporary storage. Early CPUs only had a few registers due to this (i.e. 6502, Z80 - the 6502 only had 3 general purpose registers. Some CPUs like the TMS9900 actually use... | In a system with register renaming, you can vary the number of physical registers and only affect performance.
But you can't very the number of register names without creating a totally new architecture. Try to remove some names, and programs that did use those names fail. Try to add some names, and the 5-bit encoding... |
727,679 | Why MIPS CPU has 32 registers in the register file? Could it be more or less? What's the impact if we modify the size of register file? | 2014/03/11 | [
"https://superuser.com/questions/727679",
"https://superuser.com",
"https://superuser.com/users/306919/"
] | MIPS is a "RISC" or "load-store" architecture.
RAM used to be as fast as CPUs. So people would write programs that would use RAM as intermediate or temporary storage. Early CPUs only had a few registers due to this (i.e. 6502, Z80 - the 6502 only had 3 general purpose registers. Some CPUs like the TMS9900 actually use... | It didn't have to, but it's a nice compromise with other design decisions.
So first off, the instruction length in MIPS is 32 bits(most MIPS, there is a 64-bit version). (You can see lots of details how it breaks down [here](http://www.cs.umd.edu/class/sum2003/cmsc311/Notes/Mips/format.html)). In many MIPS instructio... |
19,207,153 | I am building a node graph in a QGraphicsView and I am currently implementing panning.
I used the following question "[how to pan images in QGraphicsView](https://stackoverflow.com/questions/4753681/how-to-pan-images-in-qgraphicsview)" to start but the panning is limited by the scrollbar range.
I also tried the trans... | 2013/10/06 | [
"https://Stackoverflow.com/questions/19207153",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/437728/"
] | If you take a look at [this video](http://www.youtube.com/watch?v=VeE_p11Iwd4), at the 3 minute mark you'll see the demonstration panning the screen. The application here is one I developed and although it doesn't show it, the real estate of the board appears limitless when panning.
What I did for this was to create a... | You want to plot graphs. Try out this Qt library - [QCustomPlot](http://www.qcustomplot.com) , it will save you hours of hard work. |
19,207,153 | I am building a node graph in a QGraphicsView and I am currently implementing panning.
I used the following question "[how to pan images in QGraphicsView](https://stackoverflow.com/questions/4753681/how-to-pan-images-in-qgraphicsview)" to start but the panning is limited by the scrollbar range.
I also tried the trans... | 2013/10/06 | [
"https://Stackoverflow.com/questions/19207153",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/437728/"
] | I came across the same issue. However, setting the scene to something big and leaving it I do not think is the best option. I have developed a dynamic way of changing the scene size so it lets you move freely. You can find it in this other stack overflow [answer](https://stackoverflow.com/a/55043082/4179302). | You want to plot graphs. Try out this Qt library - [QCustomPlot](http://www.qcustomplot.com) , it will save you hours of hard work. |
19,207,153 | I am building a node graph in a QGraphicsView and I am currently implementing panning.
I used the following question "[how to pan images in QGraphicsView](https://stackoverflow.com/questions/4753681/how-to-pan-images-in-qgraphicsview)" to start but the panning is limited by the scrollbar range.
I also tried the trans... | 2013/10/06 | [
"https://Stackoverflow.com/questions/19207153",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/437728/"
] | If you take a look at [this video](http://www.youtube.com/watch?v=VeE_p11Iwd4), at the 3 minute mark you'll see the demonstration panning the screen. The application here is one I developed and although it doesn't show it, the real estate of the board appears limitless when panning.
What I did for this was to create a... | I came across the same issue. However, setting the scene to something big and leaving it I do not think is the best option. I have developed a dynamic way of changing the scene size so it lets you move freely. You can find it in this other stack overflow [answer](https://stackoverflow.com/a/55043082/4179302). |
21,826 | I am reading the script of a TV series "How I Met Your Mother"
The script has this sentence:
>
> Hey, you want to do somethin' tonight? Okay, meet me at the bar in 15 minutes.
> And suit up! Where's your suit? Just once, when I say suit up, I wish you'd put on a suit.
>
>
>
What does "suit up" means please?
I ... | 2014/04/21 | [
"https://ell.stackexchange.com/questions/21826",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/1834/"
] | In that context, "How I Met Your Mother", Barney literally and specifically means put on a suit, with a jacket and tie.
In other contexts, it means 'prepare for an activity by putting on the appropriate clothes, uniform or equipment.' | [it means](http://www.macmillandictionary.com/us/dictionary/american/suit-up) : to get ready for an activity by putting on a uniform or special clothes.
>
> Suit up, and we go.
>
>
> |
21,826 | I am reading the script of a TV series "How I Met Your Mother"
The script has this sentence:
>
> Hey, you want to do somethin' tonight? Okay, meet me at the bar in 15 minutes.
> And suit up! Where's your suit? Just once, when I say suit up, I wish you'd put on a suit.
>
>
>
What does "suit up" means please?
I ... | 2014/04/21 | [
"https://ell.stackexchange.com/questions/21826",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/1834/"
] | The above answers are correct, but the expression usually has a sense of specialized clothing that has a protective purpose.
For example, a diver might suit up with a wetsuit, or an astronaut would suit up with a space suit. | [it means](http://www.macmillandictionary.com/us/dictionary/american/suit-up) : to get ready for an activity by putting on a uniform or special clothes.
>
> Suit up, and we go.
>
>
> |
21,826 | I am reading the script of a TV series "How I Met Your Mother"
The script has this sentence:
>
> Hey, you want to do somethin' tonight? Okay, meet me at the bar in 15 minutes.
> And suit up! Where's your suit? Just once, when I say suit up, I wish you'd put on a suit.
>
>
>
What does "suit up" means please?
I ... | 2014/04/21 | [
"https://ell.stackexchange.com/questions/21826",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/1834/"
] | In that context, "How I Met Your Mother", Barney literally and specifically means put on a suit, with a jacket and tie.
In other contexts, it means 'prepare for an activity by putting on the appropriate clothes, uniform or equipment.' | The above answers are correct, but the expression usually has a sense of specialized clothing that has a protective purpose.
For example, a diver might suit up with a wetsuit, or an astronaut would suit up with a space suit. |
7,554,971 | For example, lets say I have hello.java (arbitrarily), if it was running and user changed some accessible (not private) variable in that application by providing input while running, this application would have the variable different compared to one not executed yet. And another program (preferably java) can get or sho... | 2011/09/26 | [
"https://Stackoverflow.com/questions/7554971",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/808213/"
] | A variable holds a piece of information in memory. If you want to make it accessible from another program, you have two choices :
* make it available using some communication protocol (plain socket, RMI, etc.)
* store it in a persistent store (the file system, a database), and have the second program read the persiste... | Yours is the problem of accessing an object in a JVM remotely. [RMI](http://en.wikipedia.org/wiki/Java_remote_method_invocation) seems good choice for this.
Here there will be two parts to your application
1. RMI server which will be the your application where the variable chance is supposed to happen.
2. RMI client... |
1,297,489 | I am running Windows 7 x64. Ever since I installed the OS on my machine a couple of months ago, there has been random restarts occasionally.
* My previous OS was Windows 8 and I did not have this issue.
* The restart is not preceded by anything - no BSOD, no application hangs etc. It feels like somebody just hit the r... | 2018/02/22 | [
"https://superuser.com/questions/1297489",
"https://superuser.com",
"https://superuser.com/users/372205/"
] | If you find that your PC is crashed because of a driver fault, the best way to find the causing driver is using windbg.
* Check the if you machine has crash dump available. See <https://serverfault.com/questions/306812/where-is-minidump-file> for the exact location of the dump files.
* Install WinDbg; See <https://doc... | Some useful troubleshooting methods :
* Search the Event Viewer for useful error messages for both software and hardware.
* See if [BlueScreenView](http://www.nirsoft.net/utils/blue_screen_view.html) finds any Windows crash files - it will highlight the crashing driver.
* Try [AppCrashView](http://www.nirsoft.net/util... |
7,252,842 | I have a ruby script. I need to access the functions written in c/c++ in my ruby script. Can any one tell me how to access these functions.
Thanks in advance. | 2011/08/31 | [
"https://Stackoverflow.com/questions/7252842",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/890064/"
] | Other options are:
* [FFI](https://github.com/ffi/ffi/wiki)
* without additional SW as described here: [pickaxe book](http://www.ruby-doc.org/docs/ProgrammingRuby/html/ext_ruby.html) | You can create a Ruby module that wraps your C/C++ functions using [SWIG](http://www.swig.org/). |
7,252,842 | I have a ruby script. I need to access the functions written in c/c++ in my ruby script. Can any one tell me how to access these functions.
Thanks in advance. | 2011/08/31 | [
"https://Stackoverflow.com/questions/7252842",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/890064/"
] | Ryan Davis has created a 'Hello, World!' C extension example for beginners:
<https://github.com/zenspider/ruby-c-example> | You can create a Ruby module that wraps your C/C++ functions using [SWIG](http://www.swig.org/). |
7,252,842 | I have a ruby script. I need to access the functions written in c/c++ in my ruby script. Can any one tell me how to access these functions.
Thanks in advance. | 2011/08/31 | [
"https://Stackoverflow.com/questions/7252842",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/890064/"
] | You could also try [Rubyinline](https://github.com/seattlerb/rubyinline "RubyInline") | You can create a Ruby module that wraps your C/C++ functions using [SWIG](http://www.swig.org/). |
546,350 | Does anyone have experience with implementing OpenID on a non technical website? If you do, how were your non tech users reacting to the concept of OpenID and creation of the account on a different website?
I really like the idea of a single sign-on, but I am afraid that non-tech people who are used to create an acco... | 2009/02/13 | [
"https://Stackoverflow.com/questions/546350",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/41877/"
] | Yahoo released their [OpenID usability research](http://developer.yahoo.net/blog/archives/2008/10/open_id_research.html) results a while back. This will give you an insight on how OpenID is perceived by non-techies. | <http://openiddirectory.com/> is a directory for sites that uses OpenID. You might find something interesting there. |
546,350 | Does anyone have experience with implementing OpenID on a non technical website? If you do, how were your non tech users reacting to the concept of OpenID and creation of the account on a different website?
I really like the idea of a single sign-on, but I am afraid that non-tech people who are used to create an acco... | 2009/02/13 | [
"https://Stackoverflow.com/questions/546350",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/41877/"
] | Yahoo released their [OpenID usability research](http://developer.yahoo.net/blog/archives/2008/10/open_id_research.html) results a while back. This will give you an insight on how OpenID is perceived by non-techies. | JanRain has some casestudies on OpenID usage at <http://www.janrain.com/openid/casestudies> |
546,350 | Does anyone have experience with implementing OpenID on a non technical website? If you do, how were your non tech users reacting to the concept of OpenID and creation of the account on a different website?
I really like the idea of a single sign-on, but I am afraid that non-tech people who are used to create an acco... | 2009/02/13 | [
"https://Stackoverflow.com/questions/546350",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/41877/"
] | Yahoo released their [OpenID usability research](http://developer.yahoo.net/blog/archives/2008/10/open_id_research.html) results a while back. This will give you an insight on how OpenID is perceived by non-techies. | I have the same question actually.
I will add my own input - my only real experience with OpenID is on stackoverflow here. And I will say it is confusing. Perhaps it's related to the way stackoverflow allows anonymous accounts to be joined together, in any case the overall experience was less than straight forward.
... |
546,350 | Does anyone have experience with implementing OpenID on a non technical website? If you do, how were your non tech users reacting to the concept of OpenID and creation of the account on a different website?
I really like the idea of a single sign-on, but I am afraid that non-tech people who are used to create an acco... | 2009/02/13 | [
"https://Stackoverflow.com/questions/546350",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/41877/"
] | <http://openiddirectory.com/> is a directory for sites that uses OpenID. You might find something interesting there. | I have the same question actually.
I will add my own input - my only real experience with OpenID is on stackoverflow here. And I will say it is confusing. Perhaps it's related to the way stackoverflow allows anonymous accounts to be joined together, in any case the overall experience was less than straight forward.
... |
546,350 | Does anyone have experience with implementing OpenID on a non technical website? If you do, how were your non tech users reacting to the concept of OpenID and creation of the account on a different website?
I really like the idea of a single sign-on, but I am afraid that non-tech people who are used to create an acco... | 2009/02/13 | [
"https://Stackoverflow.com/questions/546350",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/41877/"
] | JanRain has some casestudies on OpenID usage at <http://www.janrain.com/openid/casestudies> | I have the same question actually.
I will add my own input - my only real experience with OpenID is on stackoverflow here. And I will say it is confusing. Perhaps it's related to the way stackoverflow allows anonymous accounts to be joined together, in any case the overall experience was less than straight forward.
... |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | As long as the questions remain in good faith (and aren't an overt marketing effort), I'm certainly in favor of it.
However, the answers shall also come from the organizational account and **not** your personal account. This makes everything more transparent. | An alternative would be to direct the originators of the question to post them on Stack Overflow and then answer using your personal accounts but make it clear you are answering on behalf of "Foo Community". |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | As long as the questions remain in good faith (and aren't an overt marketing effort), I'm certainly in favor of it.
However, the answers shall also come from the organizational account and **not** your personal account. This makes everything more transparent. | I think as long as the answers "disclose your affiliation with the product" as stated in the [SO FAQ](https://stackoverflow.com/faq) I think it's fine and ultimately serves the goal of the site. |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | As long as the questions remain in good faith (and aren't an overt marketing effort), I'm certainly in favor of it.
However, the answers shall also come from the organizational account and **not** your personal account. This makes everything more transparent. | (Updated:) From what I could find elsewhere ([blog](https://blog.stackoverflow.com/2011/07/its-ok-to-ask-and-answer-your-own-questions/), [meta question 1](https://meta.stackexchange.com/questions/41436/is-it-wrong-to-ask-questions-for-someone-else), [meta question 2](https://meta.stackexchange.com/questions/68987/can-... |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | An alternative would be to direct the originators of the question to post them on Stack Overflow and then answer using your personal accounts but make it clear you are answering on behalf of "Foo Community". | I think as long as the answers "disclose your affiliation with the product" as stated in the [SO FAQ](https://stackoverflow.com/faq) I think it's fine and ultimately serves the goal of the site. |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | An alternative would be to direct the originators of the question to post them on Stack Overflow and then answer using your personal accounts but make it clear you are answering on behalf of "Foo Community". | (Updated:) From what I could find elsewhere ([blog](https://blog.stackoverflow.com/2011/07/its-ok-to-ask-and-answer-your-own-questions/), [meta question 1](https://meta.stackexchange.com/questions/41436/is-it-wrong-to-ask-questions-for-someone-else), [meta question 2](https://meta.stackexchange.com/questions/68987/can-... |
65,959 | Say the developers of the open source project Foo create a Stack Overflow account "Foo Community". They use this account to post on Stack Overflow questions they often get from the community as "Foo Community" and then post answers to those questions with their own personal account. Assuming the questions follow all th... | 2010/09/28 | [
"https://meta.stackexchange.com/questions/65959",
"https://meta.stackexchange.com",
"https://meta.stackexchange.com/users/137045/"
] | (Updated:) From what I could find elsewhere ([blog](https://blog.stackoverflow.com/2011/07/its-ok-to-ask-and-answer-your-own-questions/), [meta question 1](https://meta.stackexchange.com/questions/41436/is-it-wrong-to-ask-questions-for-someone-else), [meta question 2](https://meta.stackexchange.com/questions/68987/can-... | I think as long as the answers "disclose your affiliation with the product" as stated in the [SO FAQ](https://stackoverflow.com/faq) I think it's fine and ultimately serves the goal of the site. |
201,789 | I want to find a word to express relearning something. For instance, after taking a lecture you may find that something is still confusing and you go to learn it the second time by reading the textbook or possibly watching the record of the lecture.
I've searched the Internet for the phrase "course review" or "review... | 2019/03/22 | [
"https://ell.stackexchange.com/questions/201789",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/10484/"
] | It’s fine.
When you review (AmE) or revise (BrE) something, you *study it again*, you *go over it again*, usually in preparation for an exam.
>
> We're **reviewing** (algebra) for the test tomorrow.
>
>
> We're **revising** (algebra) for the test tomorrow.
>
>
> Let’s **go over the rules** once more before we be... | **Review** is the perfect word to describe that.
You may also wish to "study" the course, though this word implies you aren't "relearning" anything, unless you're coming back to this subject after a long time.
"Course review" literally makes sense, but as you found people are using that as a synonym for a "course eva... |
201,789 | I want to find a word to express relearning something. For instance, after taking a lecture you may find that something is still confusing and you go to learn it the second time by reading the textbook or possibly watching the record of the lecture.
I've searched the Internet for the phrase "course review" or "review... | 2019/03/22 | [
"https://ell.stackexchange.com/questions/201789",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/10484/"
] | It’s fine.
When you review (AmE) or revise (BrE) something, you *study it again*, you *go over it again*, usually in preparation for an exam.
>
> We're **reviewing** (algebra) for the test tomorrow.
>
>
> We're **revising** (algebra) for the test tomorrow.
>
>
> Let’s **go over the rules** once more before we be... | **To refresh** is a good candidate.
In [Cambridge dictionary](https://dictionary.cambridge.org/dictionary/english/refresh-sb-s-memory):
>
> **refresh** sb's memory = to help someone remember something:
>
>
> * I looked the word up in the dictionary to **refresh** my memory of its exact meaning.
>
>
>
In your c... |
1,122 | Is there any difference between using *pretty*, and *quite*, in the following sentences?
>
> I am pretty good at playing soccer.
>
>
>
>
> I am quite good at playing soccer.
>
>
>
>
> How are you?
>
> I am quite well.
>
>
>
>
> How are you?
>
> I am pretty well.
>
>
>
The reason I am asking... | 2013/02/06 | [
"https://ell.stackexchange.com/questions/1122",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/95/"
] | [Pretty](http://oxforddictionaries.com/definition/english/pretty?q=pretty) is "to a moderately high degree; fairly", whereas [quite](http://oxforddictionaries.com/definition/english/quite?q=quite) can have two meanings: "to the utmost or most absolute extent or degree; absolutely; completely" or "to a certain or fairly... | It's funny that English is not technically a tonal language when so much of our speech depends largely on tone.
*Quite* means what you think it does. It basically means *very.* For all intents and purposes as a learner, you can think of it as a synonym for *very* or *really*.
*Pretty*, however, depends on the tone of... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | No component is ideal, and inductors tend to be the least ideal of the passive components--and relays and solenoids are even *less* ideal than your average inductor, because they aren't designed to be close to ideal.
All materials (other than superconductors in their superconducting phase) have some positive resistivi... | All inductors have series resistance. Well, unless they are made with super-conducting wire, I guess. But coils designed for DC operation have sufficient DC resistance to limit the DC current to a reasonable level for continuous operation. This is convenient so that the user of the coil does not have to figure out a wa... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | No component is ideal, and inductors tend to be the least ideal of the passive components--and relays and solenoids are even *less* ideal than your average inductor, because they aren't designed to be close to ideal.
All materials (other than superconductors in their superconducting phase) have some positive resistivi... | When you have two resistive elements in series, like a coil and resistor in a DC circuit, then each one consumes power proportional to its resistance.
That is why you don't put a resistor in series with a relay or motor. You want to deliver power to the relay or motor instead of wasting it in a resistor.
The magnetic... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | No component is ideal, and inductors tend to be the least ideal of the passive components--and relays and solenoids are even *less* ideal than your average inductor, because they aren't designed to be close to ideal.
All materials (other than superconductors in their superconducting phase) have some positive resistivi... | The correct DC voltage across a solenoid or relay is important to ensure it actuates and doesn't overheat. A resistor in series with a low voltage solenoid may be useful to allow it to be operated from a higher voltage. For example the KEMET EC2-5NU is a 5V relay with a coil resistance of 178 ohms. To run it off 12V a ... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | No component is ideal, and inductors tend to be the least ideal of the passive components--and relays and solenoids are even *less* ideal than your average inductor, because they aren't designed to be close to ideal.
All materials (other than superconductors in their superconducting phase) have some positive resistivi... | Ideal inductors would indeed act the way you describe: if you stall an ideal DC motor, or apply DC to a solenoid, they would produce infinite force and consume infinite current.
If you're talking about real-world components, then "short" is only defined in a context: in some schematics, 1 kOhm is a short, while in oth... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | All inductors have series resistance. Well, unless they are made with super-conducting wire, I guess. But coils designed for DC operation have sufficient DC resistance to limit the DC current to a reasonable level for continuous operation. This is convenient so that the user of the coil does not have to figure out a wa... | When you have two resistive elements in series, like a coil and resistor in a DC circuit, then each one consumes power proportional to its resistance.
That is why you don't put a resistor in series with a relay or motor. You want to deliver power to the relay or motor instead of wasting it in a resistor.
The magnetic... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | All inductors have series resistance. Well, unless they are made with super-conducting wire, I guess. But coils designed for DC operation have sufficient DC resistance to limit the DC current to a reasonable level for continuous operation. This is convenient so that the user of the coil does not have to figure out a wa... | The correct DC voltage across a solenoid or relay is important to ensure it actuates and doesn't overheat. A resistor in series with a low voltage solenoid may be useful to allow it to be operated from a higher voltage. For example the KEMET EC2-5NU is a 5V relay with a coil resistance of 178 ohms. To run it off 12V a ... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | All inductors have series resistance. Well, unless they are made with super-conducting wire, I guess. But coils designed for DC operation have sufficient DC resistance to limit the DC current to a reasonable level for continuous operation. This is convenient so that the user of the coil does not have to figure out a wa... | Ideal inductors would indeed act the way you describe: if you stall an ideal DC motor, or apply DC to a solenoid, they would produce infinite force and consume infinite current.
If you're talking about real-world components, then "short" is only defined in a context: in some schematics, 1 kOhm is a short, while in oth... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | When you have two resistive elements in series, like a coil and resistor in a DC circuit, then each one consumes power proportional to its resistance.
That is why you don't put a resistor in series with a relay or motor. You want to deliver power to the relay or motor instead of wasting it in a resistor.
The magnetic... | The correct DC voltage across a solenoid or relay is important to ensure it actuates and doesn't overheat. A resistor in series with a low voltage solenoid may be useful to allow it to be operated from a higher voltage. For example the KEMET EC2-5NU is a 5V relay with a coil resistance of 178 ohms. To run it off 12V a ... |
570,878 | I've never worked with or studied electro-mechanical components, but my understanding is that relays and motors are basically just inductors. If they're inductors, wouldn't they act as a short under DC and need the current controlled by an external resistor or transistor? | 2021/06/13 | [
"https://electronics.stackexchange.com/questions/570878",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/171611/"
] | When you have two resistive elements in series, like a coil and resistor in a DC circuit, then each one consumes power proportional to its resistance.
That is why you don't put a resistor in series with a relay or motor. You want to deliver power to the relay or motor instead of wasting it in a resistor.
The magnetic... | Ideal inductors would indeed act the way you describe: if you stall an ideal DC motor, or apply DC to a solenoid, they would produce infinite force and consume infinite current.
If you're talking about real-world components, then "short" is only defined in a context: in some schematics, 1 kOhm is a short, while in oth... |
127,351 | From my understanding, the Bluetooth signal is using a 2.4 GHz frequency.
However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected.
Does the 40 MHz RC vehicle is the root cause that cause the Bluetooth to get interrupt or disconnect?
If it is not the... | 2014/09/01 | [
"https://electronics.stackexchange.com/questions/127351",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/50795/"
] | Just like any radio receiver, the front end/antenna wanted signal is very tiny - maybe about a couple of micro volts. Along comes a big signal from a relatively more powerful 40MHz radio transmitter and the front-end circuit is swamped into overload and this compresses the wanted signal.
It's called compression: -
![... | In theory, harmonics of 40MHz multiplied by 60 is 2.4GHz.
Practically, every next harmonic frequency has much less power than previous one. So at 60th harmonics the influence can be considered as 0.
Microwave, some Wi-Fi networks, nRF module, ZigBee, some proprietary devices use 2.4GHz carrier RF. |
127,351 | From my understanding, the Bluetooth signal is using a 2.4 GHz frequency.
However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected.
Does the 40 MHz RC vehicle is the root cause that cause the Bluetooth to get interrupt or disconnect?
If it is not the... | 2014/09/01 | [
"https://electronics.stackexchange.com/questions/127351",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/50795/"
] | In theory, harmonics of 40MHz multiplied by 60 is 2.4GHz.
Practically, every next harmonic frequency has much less power than previous one. So at 60th harmonics the influence can be considered as 0.
Microwave, some Wi-Fi networks, nRF module, ZigBee, some proprietary devices use 2.4GHz carrier RF. | Motors create broadband (wide spectrum) RF noise. It's possible that it's actually the motors in the vehicle, rather than the intentional RF from the controller, that's causing the interference. |
127,351 | From my understanding, the Bluetooth signal is using a 2.4 GHz frequency.
However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected.
Does the 40 MHz RC vehicle is the root cause that cause the Bluetooth to get interrupt or disconnect?
If it is not the... | 2014/09/01 | [
"https://electronics.stackexchange.com/questions/127351",
"https://electronics.stackexchange.com",
"https://electronics.stackexchange.com/users/50795/"
] | Just like any radio receiver, the front end/antenna wanted signal is very tiny - maybe about a couple of micro volts. Along comes a big signal from a relatively more powerful 40MHz radio transmitter and the front-end circuit is swamped into overload and this compresses the wanted signal.
It's called compression: -
![... | Motors create broadband (wide spectrum) RF noise. It's possible that it's actually the motors in the vehicle, rather than the intentional RF from the controller, that's causing the interference. |
45,889 | I have a road bike with road tires. I commute on a paved trail that is fairly bumpy through a couple places due to roots pushing the asphalt up.
My problem is that about once every week or two, I have a poke nipple completely loosen and fall inside the wheel. I've had them replaced with brass nipples, but even those ... | 2017/03/26 | [
"https://bicycles.stackexchange.com/questions/45889",
"https://bicycles.stackexchange.com",
"https://bicycles.stackexchange.com/users/19525/"
] | This is a strange problem you're describing. Having them chronically come loose to the point of falling off is not a common problem, and even so the obvious solution is more/proper tension, but if the wheel was essentially rebuilt already (all new nipples?) then one would hope it's in the reasonable ballpark, 100-120kg... | About six months ago I thought somebody (unknown) had maliciously loosened some of my spokes. A week later it "happened" again. I now believe that the spokes were loosening by themselves during riding because **they were too loose to begin with**. I re-tensioned the entire wheel, and the problem has gone away completel... |
14,939 | While taking out an rusted tailpeice it broke and you can see what was left in the pvc pipe.
How can I remove the rest of the tailpiece?
Update: Also how would I know which tailpiece size to replace it with.
![Rusted Tailpiece Remains](https:/... | 2012/06/16 | [
"https://diy.stackexchange.com/questions/14939",
"https://diy.stackexchange.com",
"https://diy.stackexchange.com/users/6496/"
] | I think I would just be inclined to replace both the tail piece and the PVC pipe (and trap if necessary). You might be able to get it out without damaging the pipe but more then likely you will at minimum, rough up the surface inside which might just attract gunk to stick to it over time. It's probably easier than tryi... | Insert a pair of needlenose pliers as far as possible between the rusted tailpiece and the white pvc pipe. Twist the pliers as if you were twirling spaghetti on a fork. This action will cause the metal pipe to collapse onto itself making it small enough to easily remove. Bring the lower slipnut washer with you when you... |
256,631 | In my office, we are working off one IP address currently, and this lets us connect a single computer to one of our client's VPNs, which effectively locks out multiple people from working with that client (1 VPN connection per IP). Is there a particular way via some software or service that will allow us to 'fake' an o... | 2011/04/06 | [
"https://serverfault.com/questions/256631",
"https://serverfault.com",
"https://serverfault.com/users/77453/"
] | One thing you can try is, establish the VPN connection at the router level, and it should handle all the connections for you.
If you are using a cheap router that doesn't allow VPN connections (not VPN passthrough), another potential cheap/free solution would be to update your router's firmware if possible to unlock f... | I agree (depending on the type of VPN you have to work with) that you should look for a site-to-site solution. However, rather than trying to unlock a feature that may exist in your router, it may be easier to set up a port-forwarding rule on the router/FW to pass the ports the VPN runs over to an internal VPN "client"... |
256,631 | In my office, we are working off one IP address currently, and this lets us connect a single computer to one of our client's VPNs, which effectively locks out multiple people from working with that client (1 VPN connection per IP). Is there a particular way via some software or service that will allow us to 'fake' an o... | 2011/04/06 | [
"https://serverfault.com/questions/256631",
"https://serverfault.com",
"https://serverfault.com/users/77453/"
] | One thing you can try is, establish the VPN connection at the router level, and it should handle all the connections for you.
If you are using a cheap router that doesn't allow VPN connections (not VPN passthrough), another potential cheap/free solution would be to update your router's firmware if possible to unlock f... | This is the limiatation of PPTP Passthrough. Sourssprite solution will work. However some people will not have a router that can terminate the VPN tunnel.
What you are actually describing is VPN passthrough where the router allows outbound VPN connections. There are problems though and I know I found an article called ... |
7,544,332 | Decision problems are not suited for use in evolutionary algorithms since a simple right/wrong fitness measure cannot be optimized/evolved. So, what are some methods/techniques for converting decision problems to optimization problems?
For instance, I'm currently working on a problem where the fitness of an individua... | 2011/09/25 | [
"https://Stackoverflow.com/questions/7544332",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/963396/"
] | Application to multiple inputs and examination of percentage of correct answers.
True, a right/wrong fitness measure cannot evolve towards more rightness, but an algorithm can nonetheless apply a mutable function to whatever input it takes to produce a decision which will be right or wrong. So, you keep mutating the ... | Well i think you must work on your fitness function.
When you say that some Individuals are more close to a perfect solution can you identify this solutions based on their genetic structure?
If you can do that a program could do that too and so you shouldn't rate the individual based on the output but on its structure. |
5,605 | Turkeys say, "gobble". We also "gobble" down a lot of turkey on Thanksgiving. This is just a bit of idle musing, but are the two meanings of this word somehow related via the American & Canadian holidays? | 2010/11/25 | [
"https://english.stackexchange.com/questions/5605",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/803/"
] | Etymonline has [this](http://www.etymonline.com/index.php?search=gobble&searchmode=none):
>
> **gobble (1)**
> "eat fast," c.1600, probably partly echoic, partly frequentative of *gob*, via *gobben* "drink something greedily." Related: *Gobbled*; *gobbling*.
>
>
> **gobble (2)**
> "turkey noise," 1680, probably... | The *O.E.D.* lists "gobble" as a noun meaning *mouth*, and "gobbling" as *gorging*, the latter dating from 1630. Still, I would not be surprised if the verb form meaning the sound a turkey makes is at least in some sense onomatopoeic. Where the two senses may be related is likely to be a confusion of the two. |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | Your sceptic must understand what the symbols 1+1 means otherwise he is not justified in claiming that 1+1 is two. For example there are number systems in which there isn't a 1, or certain operations are undefined, or 1+1=0. But one could also imagine that the symbol '1' means a drop of water, and '+' means physical ad... | What about an explanation by Newton Laws (A mass can not be at the same place and same time of another mass -> mass + mass = 2 x mass) |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | Your sceptic must understand what the symbols 1+1 means otherwise he is not justified in claiming that 1+1 is two. For example there are number systems in which there isn't a 1, or certain operations are undefined, or 1+1=0. But one could also imagine that the symbol '1' means a drop of water, and '+' means physical ad... | It is true by definition, in fact i would write it like this `2=1+1` because you are defining number 2.
By the way, proves or demonstrations are just ways to simplify expressions to reach definitions, so we can be sure that premises were correct. |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | Your sceptic must understand what the symbols 1+1 means otherwise he is not justified in claiming that 1+1 is two. For example there are number systems in which there isn't a 1, or certain operations are undefined, or 1+1=0. But one could also imagine that the symbol '1' means a drop of water, and '+' means physical ad... | When I was growing up I learned that in some situations the word "one" was to be used. Say the number of dots between the parentheses (.). After a while I encountered situations like (. .) and would say "one" "one" because that would tell someone what I had seen. This kept up with (...), (....), etc with just repeating... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | A reasonable proof in ZFC would be to prove 1 + 1 = 2 for the corresponding ordinal numbers. The first few ordinal numbers in ZFC are 0:={}, 1:={0} and 2:={0, 1} with the order 0 < 1 on {0, 1}. The sum of two ordinal numbers is the disjunct union of the two well-ordered sets, with the concatenation of the well-orders a... | What about an explanation by Newton Laws (A mass can not be at the same place and same time of another mass -> mass + mass = 2 x mass) |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | It is true by definition, in fact i would write it like this `2=1+1` because you are defining number 2.
By the way, proves or demonstrations are just ways to simplify expressions to reach definitions, so we can be sure that premises were correct. | 1 + 1 = 2 is at its core a belief.
This is based on our tendency to see separate things as one. Without this tendency our perceptions disintegrate. Such beliefs allow us to communicate/ use language and one might argue this leads to consciousness.
There are no to ultimate truths.
We always have to start off with some b... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | A reasonable proof in ZFC would be to prove 1 + 1 = 2 for the corresponding ordinal numbers. The first few ordinal numbers in ZFC are 0:={}, 1:={0} and 2:={0, 1} with the order 0 < 1 on {0, 1}. The sum of two ordinal numbers is the disjunct union of the two well-ordered sets, with the concatenation of the well-orders a... | Beware that there are different kinds of truths:
* *Objective truths* assert something about the objective world:
"Paris is a French city" is an objective truth.
* *Mathematical truths* assert implications: "if pigs can fly then I am Pope" is a mathematical truth.
* *Postulated truths* are not necessarily mathematical... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | When I was growing up I learned that in some situations the word "one" was to be used. Say the number of dots between the parentheses (.). After a while I encountered situations like (. .) and would say "one" "one" because that would tell someone what I had seen. This kept up with (...), (....), etc with just repeating... | 1 + 1 = 2 is at its core a belief.
This is based on our tendency to see separate things as one. Without this tendency our perceptions disintegrate. Such beliefs allow us to communicate/ use language and one might argue this leads to consciousness.
There are no to ultimate truths.
We always have to start off with some b... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | It is true by definition, in fact i would write it like this `2=1+1` because you are defining number 2.
By the way, proves or demonstrations are just ways to simplify expressions to reach definitions, so we can be sure that premises were correct. | When I was growing up I learned that in some situations the word "one" was to be used. Say the number of dots between the parentheses (.). After a while I encountered situations like (. .) and would say "one" "one" because that would tell someone what I had seen. This kept up with (...), (....), etc with just repeating... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | A reasonable proof in ZFC would be to prove 1 + 1 = 2 for the corresponding ordinal numbers. The first few ordinal numbers in ZFC are 0:={}, 1:={0} and 2:={0, 1} with the order 0 < 1 on {0, 1}. The sum of two ordinal numbers is the disjunct union of the two well-ordered sets, with the concatenation of the well-orders a... | 1 + 1 = 2 is at its core a belief.
This is based on our tendency to see separate things as one. Without this tendency our perceptions disintegrate. Such beliefs allow us to communicate/ use language and one might argue this leads to consciousness.
There are no to ultimate truths.
We always have to start off with some b... |
8,738 | Is 1+1=2 true by definition ?
Or, is there a way to prove it?
I'm trying to understand how do we know it's true, and how to reply if someone is skeptical or denies that 1+1=2. | 2013/11/20 | [
"https://philosophy.stackexchange.com/questions/8738",
"https://philosophy.stackexchange.com",
"https://philosophy.stackexchange.com/users/4118/"
] | What about an explanation by Newton Laws (A mass can not be at the same place and same time of another mass -> mass + mass = 2 x mass) | 1 + 1 = 2 is at its core a belief.
This is based on our tendency to see separate things as one. Without this tendency our perceptions disintegrate. Such beliefs allow us to communicate/ use language and one might argue this leads to consciousness.
There are no to ultimate truths.
We always have to start off with some b... |
7,246,307 | I'm setting up an iPhone app which integrates with Facebook.
The app's settings in the facebook developer page are asking for "iTunes App Store ID"... is this the number in the url for the app? So the number would be 430671660 for this app:...?
<http://itunes.apple.com/us/app/craigslist-mobile-ultimate/id430671660?m... | 2011/08/30 | [
"https://Stackoverflow.com/questions/7246307",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/121646/"
] | Short answer it should be. If you want to verify go its under your apps information in itunesconnect. | Yes that ID is correct. The ID is the ID Generated for the App Store in iTunes Connect. |
3,564,936 | I need to implement a revision system for articles in my **grails** web app. After searching grails forum, stackoverflow, grails plugins and googling internet, I have ended up with 3 options:
**Option 1** - Using the **grails Envers plugin** (see <http://code.google.com/p/grails-envers-plugin/>). Has anyone used it s... | 2010/08/25 | [
"https://Stackoverflow.com/questions/3564936",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144012/"
] | Since I didn't get any answers during the days following my question, we have started investigating all of the options and came to the following results/conclusions :
1. **Envers plugin** : while Envers is a well-established way to handle object revisions and auditing with Hibernate (as pointed out by Vadeg), there is... | I've used Envers in project with Hibernate and it works fine. GORM is based on the Hibernate, so I think there is no problem with it.
First of all, you need to decide what kind of versioning you need? Do you need to rollback object graph changes or you need to look after some fields? Sometimes it's better to make som... |
3,564,936 | I need to implement a revision system for articles in my **grails** web app. After searching grails forum, stackoverflow, grails plugins and googling internet, I have ended up with 3 options:
**Option 1** - Using the **grails Envers plugin** (see <http://code.google.com/p/grails-envers-plugin/>). Has anyone used it s... | 2010/08/25 | [
"https://Stackoverflow.com/questions/3564936",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/144012/"
] | Since I didn't get any answers during the days following my question, we have started investigating all of the options and came to the following results/conclusions :
1. **Envers plugin** : while Envers is a well-established way to handle object revisions and auditing with Hibernate (as pointed out by Vadeg), there is... | [Lucas Ward's plugin](http://www.lucasward.net/2011/04/grails-envers-plugin.html) works. Confirmed with Grails 1.3.7
The important thing is to ensure entity updates are within transaction as envers depends on it.
Just to remind Grails controllers aren't transactional by default. |
4,370,636 | I want to find out more about NoSQL databases/data-stores available for use from Java, and so far I tried out Project Voldemort. Except for awfully chosen name, it seems fine so far.
I'd like to find out more about other such database systems. Now, on [wikipedia article](http://en.wikipedia.org/wiki/NoSQL) there is a ... | 2010/12/06 | [
"https://Stackoverflow.com/questions/4370636",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/506721/"
] | It's pretty difficult to nail down a good choice without knowing exactly what your use case is. Much of it depends on what kind of data model are you comfortable with and fits your need. You have key-value stores, document-oriented, column-oriented, etc. Another huge factor is the products take on scaling and how they ... | We have been working with HBase for our projects. Our experience is -
* The community is very dynamic and extremely helpful
* The installation procedure for developers is quite easy in either pseudo distributed or standalone mode
* We have been using it for integration test like unit tests
* Installing a cluster is al... |
4,370,636 | I want to find out more about NoSQL databases/data-stores available for use from Java, and so far I tried out Project Voldemort. Except for awfully chosen name, it seems fine so far.
I'd like to find out more about other such database systems. Now, on [wikipedia article](http://en.wikipedia.org/wiki/NoSQL) there is a ... | 2010/12/06 | [
"https://Stackoverflow.com/questions/4370636",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/506721/"
] | It's pretty difficult to nail down a good choice without knowing exactly what your use case is. Much of it depends on what kind of data model are you comfortable with and fits your need. You have key-value stores, document-oriented, column-oriented, etc. Another huge factor is the products take on scaling and how they ... | Maybe the most prominent of Java NoSQL solutions is [Cassandra](http://cassandra.apache.org/). It has some features beyond Voldemort (Order-Preserving Partitioner which allows range queries; BigTable style structure for values); and is missing others (no alternate storage backends or version clocks for versioning).
Its... |
31,007,372 | I'm trying to use Google's App Invites API with my Android app and according to their [guide](https://developers.google.com/app-invites/android/ "guide"), I need to put a config file that is generated from the developer console in the app/ directory of the project. My app has multiple build flavors, one for production,... | 2015/06/23 | [
"https://Stackoverflow.com/questions/31007372",
"https://Stackoverflow.com",
"https://Stackoverflow.com/users/4533335/"
] | Package id is a unique id for google play, you can't upload two apps with one package.
Instead of this use library projects or create different [flavors](http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Product-flavors). | Of course it is possible. Use on your new app all your abstract classes and interfaces and implement them properly but dont forget to put them in a new package. No one is gonna tell you not to do it couse no one knows or understands that you are extening another application. Good luck |
9,539 | Block ciphers have modes like GCM or OCB that combine primitives to provide both authentication and encryption.
Are there similar constructs for stream ciphers, which provide both authentication and encryption using only one cryptographic primitive - actual stream cipher (or keystream)? | 2013/08/02 | [
"https://crypto.stackexchange.com/questions/9539",
"https://crypto.stackexchange.com",
"https://crypto.stackexchange.com/users/7871/"
] | An OCB like mode seems impossible with stream-ciphers. It's coupled tightly to the concept of a keyed permutation i.e. a (tweakable) block-cipher.
Many authenticated encryption actually combine two distinct primitives. It's just that the specification and API only expose the combination.
Essentially these xor a key-s... | extending to the top answer
ACORN (lightweight authenticated cipher) is a stream-based AE scheme and is one of the finalists in CAESAR. it is better than AES-GCM mode in hardware especially in constrained environment (resources and energy consumption) and software (small code size).
Reference:
[ACORN:
A Lightweight A... |
7,634 | I am currently helping out with the [TodoMVC](http://todomvc.com) project by adding automated tests. I have been 'exercising' my tests by trying them out on new submissions, such as [this one recently](https://github.com/tastejs/todomvc/pull/798#issuecomment-33368567). One problem I have discovered is that the test res... | 2014/01/27 | [
"https://sqa.stackexchange.com/questions/7634",
"https://sqa.stackexchange.com",
"https://sqa.stackexchange.com/users/6836/"
] | I think there are two different possible situations when we talk about that sort of test dependencies. Let's say we have 2 tests A and B
1. If A and B depend on the same component/feature of your product and you know that if A fails, then, B can not success, then you should skip test B altogether. For example, a login... | The way I solve this is to ensure all the unit tests will revert back to the 'known' state regardless what happens. For example, I have a feature that manage subscription via web. In 'add' subscription tests, I always clear up the subscription data before the next test.
HTH,
Chuan |
7,634 | I am currently helping out with the [TodoMVC](http://todomvc.com) project by adding automated tests. I have been 'exercising' my tests by trying them out on new submissions, such as [this one recently](https://github.com/tastejs/todomvc/pull/798#issuecomment-33368567). One problem I have discovered is that the test res... | 2014/01/27 | [
"https://sqa.stackexchange.com/questions/7634",
"https://sqa.stackexchange.com",
"https://sqa.stackexchange.com/users/6836/"
] | Whenever possible,
instead of managing dependencies,
I work very hard
to eliminate them,
or at least reduce them.
Another high priority goal for me
is to *eliminate any technology that is not **directly** involved*
in the feature I'm testing.
Every additional element of technology
offers possibilities
for the tests to... | The way I solve this is to ensure all the unit tests will revert back to the 'known' state regardless what happens. For example, I have a feature that manage subscription via web. In 'add' subscription tests, I always clear up the subscription data before the next test.
HTH,
Chuan |
7,634 | I am currently helping out with the [TodoMVC](http://todomvc.com) project by adding automated tests. I have been 'exercising' my tests by trying them out on new submissions, such as [this one recently](https://github.com/tastejs/todomvc/pull/798#issuecomment-33368567). One problem I have discovered is that the test res... | 2014/01/27 | [
"https://sqa.stackexchange.com/questions/7634",
"https://sqa.stackexchange.com",
"https://sqa.stackexchange.com/users/6836/"
] | Whenever possible,
instead of managing dependencies,
I work very hard
to eliminate them,
or at least reduce them.
Another high priority goal for me
is to *eliminate any technology that is not **directly** involved*
in the feature I'm testing.
Every additional element of technology
offers possibilities
for the tests to... | I think there are two different possible situations when we talk about that sort of test dependencies. Let's say we have 2 tests A and B
1. If A and B depend on the same component/feature of your product and you know that if A fails, then, B can not success, then you should skip test B altogether. For example, a login... |
627,821 | There is Windows subsytem for Linux and... Is there Linux subsystem for Windows? That allows you to access Windows terminal on Linux like on Windows subsytem for Linux.
The Windows Subsystem for Linux lets developers run a GNU/Linux environment -- including most command-line tools, utilities, and applications -- direc... | 2021/01/06 | [
"https://unix.stackexchange.com/questions/627821",
"https://unix.stackexchange.com",
"https://unix.stackexchange.com/users/441735/"
] | No that isn't possible.
If you want to have a fully or even partially functioning windows environment on your linux machine you need either dual boot or a virtual machine.
If you are only looking for one or a few particular applications you could use [wine](http://www.winehq.org/).
"Windows terminal" is what confuse... | WSL is not just "a way to access Linux terminal on Windows". It goes a bit deeper: it provides a Linux-compatible programming API on top of the Windows kernel, allowing you to run Linux userspace programs on Windows.
Since Linux's unix-style programming API relies on things like terminals, WSL needs to provide them to... |
627,821 | There is Windows subsytem for Linux and... Is there Linux subsystem for Windows? That allows you to access Windows terminal on Linux like on Windows subsytem for Linux.
The Windows Subsystem for Linux lets developers run a GNU/Linux environment -- including most command-line tools, utilities, and applications -- direc... | 2021/01/06 | [
"https://unix.stackexchange.com/questions/627821",
"https://unix.stackexchange.com",
"https://unix.stackexchange.com/users/441735/"
] | No that isn't possible.
If you want to have a fully or even partially functioning windows environment on your linux machine you need either dual boot or a virtual machine.
If you are only looking for one or a few particular applications you could use [wine](http://www.winehq.org/).
"Windows terminal" is what confuse... | Simple answer is no. You can, however, install powershellcore and .NET core in linux which is the next bext thing.
<https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-core-on-linux>
<https://docs.microsoft.com/en-us/dotnet/core/install/> |
627,821 | There is Windows subsytem for Linux and... Is there Linux subsystem for Windows? That allows you to access Windows terminal on Linux like on Windows subsytem for Linux.
The Windows Subsystem for Linux lets developers run a GNU/Linux environment -- including most command-line tools, utilities, and applications -- direc... | 2021/01/06 | [
"https://unix.stackexchange.com/questions/627821",
"https://unix.stackexchange.com",
"https://unix.stackexchange.com/users/441735/"
] | WSL is not just "a way to access Linux terminal on Windows". It goes a bit deeper: it provides a Linux-compatible programming API on top of the Windows kernel, allowing you to run Linux userspace programs on Windows.
Since Linux's unix-style programming API relies on things like terminals, WSL needs to provide them to... | Simple answer is no. You can, however, install powershellcore and .NET core in linux which is the next bext thing.
<https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-core-on-linux>
<https://docs.microsoft.com/en-us/dotnet/core/install/> |
203,141 | I have created a few creatures with a pattern based on that of the earthworm (head and foremost back-portion is dark, belly and rear is paler). Both of these creatures have eyes, and on one creature the pattern is on the hair, not the skin. However, I have recently discovered that the earthworm's distinctive pattern is... | 2021/05/22 | [
"https://worldbuilding.stackexchange.com/questions/203141",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/75161/"
] | **Adaptation to predation.**
The "earthworm-a-likes" are adapted to survive predation from above (voles, birds even the occasional fox). The knack to this is to look dark against the dark soil beneath them (it presupposes that they spend time on the surface during the day - perhaps like real earthworms when it rains, ... | Artificial selection
====================
Sometimes people just want a pet that has the traits of an earthworm.
The [smooth fox terrier](https://en.wikipedia.org/wiki/Smooth_Fox_Terrier) is a dog breed that is white, with a dark head and optionally some large dark spots on the neck or torso. Sometimes they don't have... |
203,141 | I have created a few creatures with a pattern based on that of the earthworm (head and foremost back-portion is dark, belly and rear is paler). Both of these creatures have eyes, and on one creature the pattern is on the hair, not the skin. However, I have recently discovered that the earthworm's distinctive pattern is... | 2021/05/22 | [
"https://worldbuilding.stackexchange.com/questions/203141",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/75161/"
] | What is the Motivation?
-----------------------
To answer this question, we need to understand a lot more about what motivates the creatures with this body plan + Eyes. You don't tell us anything about the individual species, what they eat, where they live, or what eats them. I'll assume you want us to create species ... | **Adaptation to predation.**
The "earthworm-a-likes" are adapted to survive predation from above (voles, birds even the occasional fox). The knack to this is to look dark against the dark soil beneath them (it presupposes that they spend time on the surface during the day - perhaps like real earthworms when it rains, ... |
203,141 | I have created a few creatures with a pattern based on that of the earthworm (head and foremost back-portion is dark, belly and rear is paler). Both of these creatures have eyes, and on one creature the pattern is on the hair, not the skin. However, I have recently discovered that the earthworm's distinctive pattern is... | 2021/05/22 | [
"https://worldbuilding.stackexchange.com/questions/203141",
"https://worldbuilding.stackexchange.com",
"https://worldbuilding.stackexchange.com/users/75161/"
] | What is the Motivation?
-----------------------
To answer this question, we need to understand a lot more about what motivates the creatures with this body plan + Eyes. You don't tell us anything about the individual species, what they eat, where they live, or what eats them. I'll assume you want us to create species ... | Artificial selection
====================
Sometimes people just want a pet that has the traits of an earthworm.
The [smooth fox terrier](https://en.wikipedia.org/wiki/Smooth_Fox_Terrier) is a dog breed that is white, with a dark head and optionally some large dark spots on the neck or torso. Sometimes they don't have... |
162,978 | I have an iPhone 5S. I want to see my playlist by albums instead of by songs. When I add an album of songs to the playlist, it shows all the songs. I can do it on iTunes on the computer but it doesn't seem to allow you to show playlist by album instead of by song. | 2014/12/21 | [
"https://apple.stackexchange.com/questions/162978",
"https://apple.stackexchange.com",
"https://apple.stackexchange.com/users/105648/"
] | Unfortunately you can't do this on your iPhone, but on a mac when you select the playlist you can go to the top right corner and change it from songs to albums for them to be sorted by album. | This option needs to be added on the iPhone.
I like sorting through the music on my phone in Album view and its a big hassle when I have 800+ single songs in my "Gym" Playlist that get lumped in with the full albums I have on the phone.
This has led me to make a separate playlist for the full albums...but you can't ... |
157,091 | Can an Obscurus, like the one Newt Scamander has in his briefcase, be transferred to another host? | 2017/04/12 | [
"https://scifi.stackexchange.com/questions/157091",
"https://scifi.stackexchange.com",
"https://scifi.stackexchange.com/users/80837/"
] | Graves clearly thought that this was possible, and Tina was frightened that Newt had an Obscurus in his possession - but Newt was the expert. He assured Graves that it could not hurt anyone and expected him to know it. He explained that it could not survive outside of the container that Newt had created.
>
> NEWT: Bu... | **Not under normal circumstances.**
From what we understand about how an Obscurus is formed, unless the Obscurus was altered in some way, I would think that it could only affect the person whose repressed magic created it. It doesn't seem to be a parasitic force that prefers to attach itself to children who are repres... |
286,240 | Turn up and Come up are able to mean "appear"?
When can I use come up or turn up? | 2015/11/10 | [
"https://english.stackexchange.com/questions/286240",
"https://english.stackexchange.com",
"https://english.stackexchange.com/users/146814/"
] | Contrast...
>
> 1: *You never know what will **turn** up*
>
> 2: *You never know what will **come** up*
>
>
>
The specific context may force one interpretation of the other, but I'm sure that *on average* people would use ***turn up*** for desirable future possibilities, and ***come up*** for undesirable ones... | When used of people, they have different meanings; only 'turn up' is used as a MWV:
>
> John turned up.
>
>
>
(We didn't know if he was going to come - quite possibly not.)
>
> John came up.
>
>
>
This is probably a straight directional (... the stairs) or slightly metaphorical (... from the Midlands) usage... |
41,674 | >
> Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
>
>
>
What exactly is Gods Kingdom and his righteousness? | 2019/07/26 | [
"https://hermeneutics.stackexchange.com/questions/41674",
"https://hermeneutics.stackexchange.com",
"https://hermeneutics.stackexchange.com/users/29934/"
] | **Seek first...then...**
>
> But seek first the kingdom of God and his righteousness, and all these things will be added to you. (Matthew 6:33) [ESV]
>
>
>
The Kingdom of God is certainly a Kingdom in which God reigns supreme; as Creator, all creation is part of His Kingdom and one would expect His will to be don... | God's kingdom is a kingdom in which God is supreme. His purposes, his will, his initiatives, his honour and his glory are all supreme.
No earthly kingdom has ever attained to this. King David said at the end of his life :
>
> The Spirit of the Lord spake by me and his word was in my tongue ... the God of Israel said... |
41,674 | >
> Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
>
>
>
What exactly is Gods Kingdom and his righteousness? | 2019/07/26 | [
"https://hermeneutics.stackexchange.com/questions/41674",
"https://hermeneutics.stackexchange.com",
"https://hermeneutics.stackexchange.com/users/29934/"
] | **Seek first...then...**
>
> But seek first the kingdom of God and his righteousness, and all these things will be added to you. (Matthew 6:33) [ESV]
>
>
>
The Kingdom of God is certainly a Kingdom in which God reigns supreme; as Creator, all creation is part of His Kingdom and one would expect His will to be don... | Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
What exactly is Gods Kingdom and his righteousness.
**What is Gods Kingdom?**
Jesus in his famous "Sermon on the Mount" taught his followers to pray "let your Kingdom come." Millions of peop... |
41,674 | >
> Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
>
>
>
What exactly is Gods Kingdom and his righteousness? | 2019/07/26 | [
"https://hermeneutics.stackexchange.com/questions/41674",
"https://hermeneutics.stackexchange.com",
"https://hermeneutics.stackexchange.com/users/29934/"
] | **Seek first...then...**
>
> But seek first the kingdom of God and his righteousness, and all these things will be added to you. (Matthew 6:33) [ESV]
>
>
>
The Kingdom of God is certainly a Kingdom in which God reigns supreme; as Creator, all creation is part of His Kingdom and one would expect His will to be don... | The kingdom of God is the polity established by God in the heavens to dispense God's truth, righteousness and justice. In the first century this power and authority was embodied in the Judean leaders; the chief priests, regular priests, scribes, pharisees and the Sadducees:
>
> [Mat 21:33-46 NASB] (33) "Listen to ano... |
41,674 | >
> Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
>
>
>
What exactly is Gods Kingdom and his righteousness? | 2019/07/26 | [
"https://hermeneutics.stackexchange.com/questions/41674",
"https://hermeneutics.stackexchange.com",
"https://hermeneutics.stackexchange.com/users/29934/"
] | God's kingdom is a kingdom in which God is supreme. His purposes, his will, his initiatives, his honour and his glory are all supreme.
No earthly kingdom has ever attained to this. King David said at the end of his life :
>
> The Spirit of the Lord spake by me and his word was in my tongue ... the God of Israel said... | Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
What exactly is Gods Kingdom and his righteousness.
**What is Gods Kingdom?**
Jesus in his famous "Sermon on the Mount" taught his followers to pray "let your Kingdom come." Millions of peop... |
41,674 | >
> Matthew 6:33 (KJV): But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.
>
>
>
What exactly is Gods Kingdom and his righteousness? | 2019/07/26 | [
"https://hermeneutics.stackexchange.com/questions/41674",
"https://hermeneutics.stackexchange.com",
"https://hermeneutics.stackexchange.com/users/29934/"
] | God's kingdom is a kingdom in which God is supreme. His purposes, his will, his initiatives, his honour and his glory are all supreme.
No earthly kingdom has ever attained to this. King David said at the end of his life :
>
> The Spirit of the Lord spake by me and his word was in my tongue ... the God of Israel said... | The kingdom of God is the polity established by God in the heavens to dispense God's truth, righteousness and justice. In the first century this power and authority was embodied in the Judean leaders; the chief priests, regular priests, scribes, pharisees and the Sadducees:
>
> [Mat 21:33-46 NASB] (33) "Listen to ano... |
303,391 | Consider a typical mathematical sentence defining two tuples: (s\_i)\_{i=1}^n and (t\_i)\_{i=1}^n:
>
> Let (s\_i)\_{i=1}^n = X (,) and (t\_i)\_{i=1}^n = Y.
>
>
>
The parens around the comma mean that it's unclear whether the comma actually belongs there.
Is the comma before “and”
1. necessary,
2. forbidden,
3. ... | 2021/12/03 | [
"https://ell.stackexchange.com/questions/303391",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/-1/"
] | *To be to X* means to plan/need/have to do X because something requires, compels, or forces it.
It doesn't mean X has been done yet.
It's often used as a polite but firm imperative, and used to talk about an action that an employer or law is requiring. Hence the formal "flavor" of the construction.
>
> If you were ... | Including ***are to*** or not in OP's context changes the meaning significantly...
>
> 1: *If you go to university, you might learn quantum electrodynamics*
>
> It's possible that by going to uni, you might learn QED (but you might not go anyway)
>
>
>
>
> 2: *If you **are to** go1 to university, you must lea... |
143,342 | I met the [Kirchhoff circuit laws](http://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws) in the past, but now I'm trying to associate them with a practical representation to be sure to understand them.
Let's start with the Kirchhoff current law: If I say that the electrons are like water going though a pipe, it ca... | 2014/10/27 | [
"https://physics.stackexchange.com/questions/143342",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/62862/"
] | Suppose your pipes form a loop i.e. water can flow through the pipes and get back to where it started. As the water flows round the loop there will be some places where pressure rises (e.g. a pump = battery) and some places where pressure falls (e.g. a restriction = resistor). However if the water goes all the way roun... | The Kirchoff Voltage law states that the sum of emfs in a circuit is equal to the total potential drop in the circuit.
So for a simple example, where you a 6V cell, for example, and 2 resistors in series.
The 6V cell can be seen as a place where the water is given potential energy - if we imagine a ramp, it would be t... |
143,342 | I met the [Kirchhoff circuit laws](http://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws) in the past, but now I'm trying to associate them with a practical representation to be sure to understand them.
Let's start with the Kirchhoff current law: If I say that the electrons are like water going though a pipe, it ca... | 2014/10/27 | [
"https://physics.stackexchange.com/questions/143342",
"https://physics.stackexchange.com",
"https://physics.stackexchange.com/users/62862/"
] | Suppose your pipes form a loop i.e. water can flow through the pipes and get back to where it started. As the water flows round the loop there will be some places where pressure rises (e.g. a pump = battery) and some places where pressure falls (e.g. a restriction = resistor). However if the water goes all the way roun... | As you said, current is like water flow, similarly voltage is like water level and voltage difference like difference of water level. We know that water flow from higher level to lower level like current flow from higher voltage to lower voltage. Voltage difference means there is a difference of charge, i.e., a differe... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | An outbound proxy server can provide more than one benefit to your network:
* Content Caching - instead of 25 people hitting your DSL connection with slashdot & fark page reloads the content can be cached on an internal server. This will speed up access to external sites, especially when the images are cached at the p... | At my current job we use a filter as a result of people watching streaming video on and off their lunch breaks. We have a rotating lunch schedule so as group1 is off for lunch, group2 is still working. This was killing our bandwidth to the outside world, as a result we purchased a Barracuda Web filter. It works just fi... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | An outbound proxy server can provide more than one benefit to your network:
* Content Caching - instead of 25 people hitting your DSL connection with slashdot & fark page reloads the content can be cached on an internal server. This will speed up access to external sites, especially when the images are cached at the p... | Perhaps the document you where reading was talking about a web-cache instead of just a proxy/gateway? A cache is a proxy that stores frequently visited pages and delivers them to your clients instead of making a request across your wan link every time someone on your network requests something.
On one networks with ar... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | Myself, I installed a Web Proxy to provide a local cache. We had a setup with about 40 users.I used a dedicated Linux Server with a [Squid proxy](http://www.squid-cache.org/) on it so I cannot talk of the Barracuda web filter. I setup our gateway to enable [transparent proxying](http://www.tldp.org/HOWTO/TransparentPro... | When a company reaches a certain size, your legal department will force you to start censoring web access due to sexual harassment risks. A proxy makes this easier to implement.
Basically anything that a woman wants it to be is sexual harassment in the US. With the custom of laying out offices so that everyone can see... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | I've heard similar a number of times and in my experience it doesn't work. Education of users is the way.
Included in my duties is maintaining an office network of ~50 computers and we don't have a proxy solution in place. What I do though is to immediately firewall someone off if they are causing problems. Then go an... | Perhaps the document you where reading was talking about a web-cache instead of just a proxy/gateway? A cache is a proxy that stores frequently visited pages and delivers them to your clients instead of making a request across your wan link every time someone on your network requests something.
On one networks with ar... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | An outbound proxy server can provide more than one benefit to your network:
* Content Caching - instead of 25 people hitting your DSL connection with slashdot & fark page reloads the content can be cached on an internal server. This will speed up access to external sites, especially when the images are cached at the p... | I've heard similar a number of times and in my experience it doesn't work. Education of users is the way.
Included in my duties is maintaining an office network of ~50 computers and we don't have a proxy solution in place. What I do though is to immediately firewall someone off if they are causing problems. Then go an... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | Myself, I installed a Web Proxy to provide a local cache. We had a setup with about 40 users.I used a dedicated Linux Server with a [Squid proxy](http://www.squid-cache.org/) on it so I cannot talk of the Barracuda web filter. I setup our gateway to enable [transparent proxying](http://www.tldp.org/HOWTO/TransparentPro... | At my current job we use a filter as a result of people watching streaming video on and off their lunch breaks. We have a rotating lunch schedule so as group1 is off for lunch, group2 is still working. This was killing our bandwidth to the outside world, as a result we purchased a Barracuda Web filter. It works just fi... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | Perhaps the document you where reading was talking about a web-cache instead of just a proxy/gateway? A cache is a proxy that stores frequently visited pages and delivers them to your clients instead of making a request across your wan link every time someone on your network requests something.
On one networks with ar... | When a company reaches a certain size, your legal department will force you to start censoring web access due to sexual harassment risks. A proxy makes this easier to implement.
Basically anything that a woman wants it to be is sexual harassment in the US. With the custom of laying out offices so that everyone can see... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | An outbound proxy server can provide more than one benefit to your network:
* Content Caching - instead of 25 people hitting your DSL connection with slashdot & fark page reloads the content can be cached on an internal server. This will speed up access to external sites, especially when the images are cached at the p... | When a company reaches a certain size, your legal department will force you to start censoring web access due to sexual harassment risks. A proxy makes this easier to implement.
Basically anything that a woman wants it to be is sexual harassment in the US. With the custom of laying out offices so that everyone can see... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | I've heard similar a number of times and in my experience it doesn't work. Education of users is the way.
Included in my duties is maintaining an office network of ~50 computers and we don't have a proxy solution in place. What I do though is to immediately firewall someone off if they are causing problems. Then go an... | At my current job we use a filter as a result of people watching streaming video on and off their lunch breaks. We have a rotating lunch schedule so as group1 is off for lunch, group2 is still working. This was killing our bandwidth to the outside world, as a result we purchased a Barracuda Web filter. It works just fi... |
5,480 | Right now we have about a 25-30 PC network, connected to the internet with a run-of-the-mill SonicWall Firewall/Router device. There isn't much filtering / blocking other than outgoing SMTP (for viruses etc.). I recall reading that at some point a network/company reaches critical mass and needs to send things through a... | 2009/05/06 | [
"https://serverfault.com/questions/5480",
"https://serverfault.com",
"https://serverfault.com/users/1478/"
] | At my current job we use a filter as a result of people watching streaming video on and off their lunch breaks. We have a rotating lunch schedule so as group1 is off for lunch, group2 is still working. This was killing our bandwidth to the outside world, as a result we purchased a Barracuda Web filter. It works just fi... | When a company reaches a certain size, your legal department will force you to start censoring web access due to sexual harassment risks. A proxy makes this easier to implement.
Basically anything that a woman wants it to be is sexual harassment in the US. With the custom of laying out offices so that everyone can see... |
369,594 | In my understanding, evolutionary architecture boils down to making architecture easy to modify. Now architecture is often defined as the things that you should get right early because they will be hard to change later.
How does this fit together? Is there any difference between evolutionary architecture and simply mi... | 2018/04/18 | [
"https://softwareengineering.stackexchange.com/questions/369594",
"https://softwareengineering.stackexchange.com",
"https://softwareengineering.stackexchange.com/users/217956/"
] | Neal Ford's keynote on Evolutionary Architecture can be found [here.](http://nealford.com/downloads/Evolutionary_Architecture_Keynote_by_Neal_Ford.pdf)
Paraphrasing:
>
> Architecture is the decisions
> that you wish you could get right early
> in a project, things that people perceive
> as hard to change. But wha... | Yes, it is a contradiction if you are making everything easy to change indiscriminately. If you have to add code to make something "easier to change" (with "easier" poorly defined, as here), then you have made it harder to change, simply because you added code. On the other hand, if you know exactly what will be changi... |
251,077 | Whenever I write a question (on Stack Overflow at least) it removes the greeting I put in the message.
What is the reason for this?
It was just removed here as well. | 2014/03/27 | [
"https://meta.stackoverflow.com/questions/251077",
"https://meta.stackoverflow.com",
"https://meta.stackoverflow.com/users/2139370/"
] | The consensus is that salutations in a question (or answer, for that matter) [are noise](https://meta.stackexchange.com/q/2950) and should be edited out.
All they do is take screen real-estate, require reading and parsing (or parsing out) by those who read the question and are not relevant to the issue at hand.
So pe... | Not only do editors remove noise from posts, [the system automatically removes common greetings](https://meta.stackexchange.com/a/93989/280467) from the posts on its own. |
2,951 | Is it possible to move the "All" Jenkins tab from the main view all the way right? It's just my browsing preference to see it at the end to not obstruct my always specific habit of using views. In other words, I would like my first view to be what I see at the beginning on the left. | 2017/12/22 | [
"https://devops.stackexchange.com/questions/2951",
"https://devops.stackexchange.com",
"https://devops.stackexchange.com/users/3920/"
] | One option is to add a new view, remove the "All" view, create a new view, select "All" and let it start with "z", e.g. "z-all" as the view is sorted alphabetically.
There is [an open issue](https://issues.jenkins-ci.org/browse/JENKINS-4242) that indicates that the ordering of tabs in Jenkins is alphabetically sorted ... | I don't have currently any Jenkins instance to test it but what worked 4 years ago is that when you rename tab if you place a space (" ") symbol as name prefix and save it does not show up (since HTML hides trailing and leading spaces) but it takes part in alphabet sorting. So you could move part of tabs to the left or... |
129,526 | Which best fits this sentence?
>
> For conferencing to happen, internet connection is \_\_\_\_\_\_\_\_\_.
>
>
> 1. mandatory
> 2. **a** mandatory
>
>
>
When I try to search, I found both of them in use and I got confused. | 2017/05/15 | [
"https://ell.stackexchange.com/questions/129526",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/55325/"
] | In both the cases, *mandatory* is an adjective. What you're missing is the context.
1. >
> is mandatory
>
>
>
2. >
> is a mandatory
>
>
>
Structure #1 is obvious.
>
> For conferencing to happen, internet connection is **mandatory**.
>
>
>
Structure #2 doesn't stand alone. *Mandatory* is describing a nou... | *Mandatory* can be used as a noun, as can virtually any other adjective. For example, Russian communists used to be called "Reds" after the color they identified their movement with. High-beam headlights for a long time were called "brights"—an adjective serving as a noun. There are countless other examples in English.... |
129,526 | Which best fits this sentence?
>
> For conferencing to happen, internet connection is \_\_\_\_\_\_\_\_\_.
>
>
> 1. mandatory
> 2. **a** mandatory
>
>
>
When I try to search, I found both of them in use and I got confused. | 2017/05/15 | [
"https://ell.stackexchange.com/questions/129526",
"https://ell.stackexchange.com",
"https://ell.stackexchange.com/users/55325/"
] | The sentence "X is Y", where X is a noun and Y is an adjective, is an unexceptional sentence. "Jim is old", "cats are friendly", "attendance is mandatory."
The sentence "X is a Y", where X is a noun and Y is an adjective, implies the adjective has been promoted to a noun for some reason.
Almost any adjective can be p... | *Mandatory* can be used as a noun, as can virtually any other adjective. For example, Russian communists used to be called "Reds" after the color they identified their movement with. High-beam headlights for a long time were called "brights"—an adjective serving as a noun. There are countless other examples in English.... |
24,187 | In the USSR there flourished some very interesting machines, including the БЭСМ and МЭСМ lines, the Сетунь, the [ЭВМ Стрела](http://www.quadibloc.com/comp/cp0308.htm) and others.
Maybe the most famous ones are
* БЭСМ-4, which is said to have done [the first computer animation](https://www.youtube.com/watch?v=so_HQKv-... | 2022/03/29 | [
"https://retrocomputing.stackexchange.com/questions/24187",
"https://retrocomputing.stackexchange.com",
"https://retrocomputing.stackexchange.com/users/576/"
] | I'm not sure your question is correct. You posit that native Soviet designs were ahead until some point around 1980, when "suddenly" clones of Western designs took over. In fact, Comecon countries started cloning Western machines way earlier. Three examples from the top of my mind, cloning the most successful Western d... | 1. Economy of scale.
The "scale" part requires an economy to back the development and the production by buying the products. The iron curtain separated the "west" (an economy with ~1 billion people) and the "east" (~300 million people with much less GDP per capita). Other parts of the world are not counted because the... |
24,187 | In the USSR there flourished some very interesting machines, including the БЭСМ and МЭСМ lines, the Сетунь, the [ЭВМ Стрела](http://www.quadibloc.com/comp/cp0308.htm) and others.
Maybe the most famous ones are
* БЭСМ-4, which is said to have done [the first computer animation](https://www.youtube.com/watch?v=so_HQKv-... | 2022/03/29 | [
"https://retrocomputing.stackexchange.com/questions/24187",
"https://retrocomputing.stackexchange.com",
"https://retrocomputing.stackexchange.com/users/576/"
] | I'm not sure your question is correct. You posit that native Soviet designs were ahead until some point around 1980, when "suddenly" clones of Western designs took over. In fact, Comecon countries started cloning Western machines way earlier. Three examples from the top of my mind, cloning the most successful Western d... | There is still development of original computer architectures in Russia, but they don't seem to get used commercially very much. In the post-Soviet era, most businesses preferred imported computers, for both performance and reliability.
The [Elbrus](https://en.wikipedia.org/wiki/Elbrus_(computer)) brand name covers se... |
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