title stringlengths 4 168 | content stringlengths 7 1.74M | commands listlengths 1 5.62k ⌀ | url stringlengths 79 342 |
|---|---|---|---|
14.9. Rebasing a Backing File of an Image | 14.9. Rebasing a Backing File of an Image The qemu-img rebase changes the backing file of an image. The backing file is changed to backing_file and (if the format of filename supports the feature), the backing file format is changed to backing_format . Note Only the qcow2 format supports changing the backing file (reba... | [
"qemu-img rebase [-f fmt ] [-t cache ] [-p] [-u] -b backing_file [-F backing_fmt ] filename"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/virtualization_deployment_and_administration_guide/sect-using_qemu_img-re_basing_a_backing_file_of_an_image |
1.5. Pacemaker Configuration and Management Tools | 1.5. Pacemaker Configuration and Management Tools Pacemaker features two configuration tools for cluster deployment, monitoring, and management. pcs pcs can control all aspects of Pacemaker and the Corosync heartbeat daemon. A command-line based program, pcs can perform the following cluster management tasks: Create an... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/high_availability_add-on_overview/s1-Pacemakertools-HAAO |
Chapter 8. Installing on GCP | Chapter 8. Installing on GCP 8.1. Preparing to install on GCP 8.1.1. Prerequisites You reviewed details about the OpenShift Container Platform installation and update processes. You read the documentation on selecting a cluster installation method and preparing it for users . 8.1.2. Requirements for installing OpenShif... | [
"openshift-install create install-config --dir <installation_directory>",
"apiVersion: v1 baseDomain: cluster1.example.com credentialsMode: Manual 1 compute: - architecture: amd64 hyperthreading: Enabled",
"openshift-install create manifests --dir <installation_directory>",
"openshift-install version",
"rel... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.11/html/installing/installing-on-gcp |
Chapter 8. Managing Content Views | Chapter 8. Managing Content Views Red Hat Satellite uses Content Views to allow your hosts access to a deliberately curated subset of content. To do this, you must define which repositories to use and then apply certain filters to the content. These filters include package filters, package group filters, errata filters... | [
"hammer repository list --organization \" My_Organization \"",
"hammer content-view create --description \" My_Content_View \" --name \" My_Content_View \" --organization \" My_Organization \" --repository-ids 1,2",
"hammer content-view publish --description \" My_Content_View \" --name \" My_Content_View \" --... | https://docs.redhat.com/en/documentation/red_hat_satellite/6.11/html/managing_content/managing_content_views_content-management |
Backup and restore | Backup and restore OpenShift Container Platform 4.10 Backing up and restoring your OpenShift Container Platform cluster Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.10/html/backup_and_restore/index |
19.3. Configuring an External LDAP Provider | 19.3. Configuring an External LDAP Provider 19.3.1. Configuring an External LDAP Provider (Interactive Setup) The ovirt-engine-extension-aaa-ldap extension allows users to customize their external directory setup easily. The ovirt-engine-extension-aaa-ldap extension supports many different LDAP server types, and an int... | [
"yum install ovirt-engine-extension-aaa-ldap-setup",
"ovirt-engine-extension-aaa-ldap-setup",
"Available LDAP implementations: 1 - 389ds 2 - 389ds RFC-2307 Schema 3 - Active Directory 4 - IBM Security Directory Server 5 - IBM Security Directory Server RFC-2307 Schema 6 - IPA 7 - Novell eDirectory RFC-2307 Schem... | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.3/html/administration_guide/sect-Configuring_an_External_LDAP_Provider |
17.3. Build the Application | 17.3. Build the Application Procedure 17.3. Build the Application Open a command line and navigate to the root directory of this quickstart. Execute the following command to build the archive: Copy the application to the appropriate server: For Linux: For Windows: When domain mode is used, deploy the applications in th... | [
"mvn clean install",
"cp adminApp/ear/target/jboss-eap-application-adminApp.ear EAP_HOME1/standalone/deployments cp appOne/ear/target/jboss-eap-application-AppOne.ear EAP_HOME2/standalone/deployments cp appTwo/ear/target/jboss-eap-application-AppTwo.ear EAP_HOME3/standalone/deployments cp appTwo/ear/target/jboss-... | https://docs.redhat.com/en/documentation/red_hat_data_grid/6.6/html/getting_started_guide/eap_cluster_app_build_the_application |
6.6. Removing Lost Physical Volumes from a Volume Group | 6.6. Removing Lost Physical Volumes from a Volume Group If you lose a physical volume, you can activate the remaining physical volumes in the volume group with the --partial argument of the vgchange command. You can remove all the logical volumes that used that physical volume from the volume group with the --removemis... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/cluster_logical_volume_manager/lost_pv_remove_from_vg |
Chapter 6. Configuring VDPA Compute nodes to enable instances that use VDPA ports | Chapter 6. Configuring VDPA Compute nodes to enable instances that use VDPA ports Important This feature is available in this release as a Technology Preview , and therefore is not fully supported by Red Hat. It should only be used for testing, and should not be deployed in a production environment. For more informatio... | [
"[stack@director ~]USD source ~/stackrc",
"(undercloud)USD openstack overcloud roles generate -o /home/stack/templates/roles_data_vdpa.yaml ComputeVdpa Compute Controller",
"############################################################################### Role: ComputeVdpa # ######################################... | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.0/html/configuring_the_compute_service_for_instance_creation/assembly_configuring-vdpa-compute-nodes-to-enable-instances-that-use-vdpa-ports |
3.6. Software Collection .pc Files Support | 3.6. Software Collection .pc Files Support The .pc files are special metadata files used by the pkg-config program to store information about libraries available on the system. In case you distribute .pc files that you intend to use only in the Software Collection environment or in addition to the .pc files installed o... | [
"%install cat >> %{buildroot}%{_scl_scripts}/enable << EOF export PKG_CONFIG_PATH=\"%{_libdir}/pkgconfig\\USD{PKG_CONFIG_PATH:+:\\USD{PKG_CONFIG_PATH}}\" EOF",
"%install cat >> %{buildroot}%{_scl_scripts}/enable << EOF export PKG_CONFIG_PATH=\"%{_datadir}/pkgconfig\\USD{PKG_CONFIG_PATH:+:\\USD{PKG_CONFIG_PATH}}\"... | https://docs.redhat.com/en/documentation/red_hat_software_collections/3/html/packaging_guide/sect-software_collection_pc_files_support |
13.11. Hot Rod C# Client | 13.11. Hot Rod C# Client The Hot Rod C# client is a new addition to the list of Hot Rod clients that includes Hot Rod Java and Hot Rod C++ clients. Hot Rod C# client allows .NET runtime applications to connect and interact with Red Hat JBoss Data Grid servers. The Hot Rod C# client is aware of the cluster topology and ... | [
"using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Infinispan.HotRod; using Infinispan.HotRod.Config; namespace simpleapp { class Program { static void Main(string[] args) { ConfigurationBuilder builder = new ConfigurationBuilder(); builder.Add... | https://docs.redhat.com/en/documentation/red_hat_data_grid/6.6/html/administration_and_configuration_guide/sect-hot_rod_c_client |
Preface | Preface Depending on your organization's security policies, you might require to identify and authorize users before giving them access to resources, such as Red Hat Developer Hub. In Developer Hub, authentication and authorization are two separate processes: Authentication defines the user identity, and passes on this... | null | https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.3/html/authentication/pr01 |
User and group APIs | User and group APIs OpenShift Container Platform 4.13 Reference guide for user and group APIs Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html-single/user_and_group_apis/index |
Chapter 16. Integrating with Jira | Chapter 16. Integrating with Jira If you are using Jira, you can forward alerts from Red Hat Advanced Cluster Security for Kubernetes to Jira. The following steps represent a high-level workflow for integrating Red Hat Advanced Cluster Security for Kubernetes with Jira: Setup a user in Jira. Use the Jira URL, username,... | [
"annotations: jira/project-key: <jira_project_key>",
"{ \"customfield_10004\": 3, \"customfield_20005\": \"Alerts\", }",
"annotations: jira/project-key: <jira_project_key>",
"roxctl -e \"USDROX_CENTRAL_ADDRESS\" central debug log --level Debug --modules notifiers/jira",
"roxctl -e \"USDROX_CENTRAL_ADDRESS\"... | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.7/html/integrating/integrate-with-jira |
Chapter 148. KafkaNodePoolSpec schema reference | Chapter 148. KafkaNodePoolSpec schema reference Used in: KafkaNodePool Property Property type Description replicas integer The number of pods in the pool. storage EphemeralStorage , PersistentClaimStorage , JbodStorage Storage configuration (disk). Cannot be updated. roles string (one or more of [controller, broker]) a... | null | https://docs.redhat.com/en/documentation/red_hat_streams_for_apache_kafka/2.7/html/streams_for_apache_kafka_api_reference/type-KafkaNodePoolSpec-reference |
11.3.3.6. Informational or Debugging Options | 11.3.3.6. Informational or Debugging Options Certain options used after the fetchmail command can supply important information. --configdump - Displays every possible option based on information from .fetchmailrc and Fetchmail defaults. No email is retrieved for any users when using this option. -s - Executes Fetchmail... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/reference_guide/s3-email-mda-fetchmail-commands-info |
Chapter 2. Using the Compliance Operator with Red Hat Advanced Cluster Security for Kubernetes | Chapter 2. Using the Compliance Operator with Red Hat Advanced Cluster Security for Kubernetes You can configure RHACS to use the Compliance Operator for compliance reporting and remediation with OpenShift Container Platform clusters. Results from the Compliance Operator are reported in the RHACS Compliance Dashboard. ... | [
"apiVersion: compliance.openshift.io/v1alpha1 kind: ScanSettingBinding metadata: name: cis-compliance profiles: - name: ocp4-cis-node kind: Profile apiGroup: compliance.openshift.io/v1alpha1 - name: ocp4-cis kind: Profile apiGroup: compliance.openshift.io/v1alpha1 settingsRef: name: default kind: ScanSetting apiGro... | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.6/html/operating/compliance-operator-rhacs |
Chapter 29. Starting a service within an isolated VRF network | Chapter 29. Starting a service within an isolated VRF network With virtual routing and forwarding (VRF), you can create isolated networks with a routing table that is different to the main routing table of the operating system. You can then start services and applications so that they have only access to the network de... | [
"nmcli connection add type vrf ifname vrf0 con-name vrf0 table 1000 ipv4.method disabled ipv6.method disabled",
"nmcli connection add type ethernet con-name enp1s0 ifname enp1s0 controller vrf0 ipv4.method manual ipv4.address 192.0.2.1/24 ipv4.gateway 192.0.2.254",
"nmcli connection modify enp1s0 +ipv4.routes \... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/configuring_and_managing_networking/assembly_starting-a-service-within-an-isolated-vrf-network_configuring-and-managing-networking |
Providing feedback on Red Hat documentation | Providing feedback on Red Hat documentation We appreciate and prioritize your feedback regarding our documentation. Provide as much detail as possible, so that your request can be quickly addressed. Prerequisites You are logged in to the Red Hat Customer Portal. Procedure To provide feedback, perform the following step... | null | https://docs.redhat.com/en/documentation/red_hat_insights/1-latest/html/remote_host_configuration_and_management/proc-providing-feedback-on-redhat-documentation |
Chapter 6. Updating hosted control planes | Chapter 6. Updating hosted control planes Updates for hosted control planes involve updating the hosted cluster and the node pools. For a cluster to remain fully operational during an update process, you must meet the requirements of the Kubernetes version skew policy while completing the control plane and node updates... | [
"spec: autoscaling: {} channel: stable-4.y 1 clusterID: d6d42268-7dff-4d37-92cf-691bd2d42f41 configuration: {} controllerAvailabilityPolicy: SingleReplica dns: baseDomain: dev11.red-chesterfield.com privateZoneID: Z0180092I0DQRKL55LN0 publicZoneID: Z00206462VG6ZP0H2QLWK",
"oc get -n <hosted_cluster_namespace> hos... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/hosted_control_planes/updating-hosted-control-planes |
Chapter 2. Running Red Hat Quay in debug mode | Chapter 2. Running Red Hat Quay in debug mode Red Hat recommends gathering your debugging information when opening a support case. Running Red Hat Quay in debug mode provides verbose logging to help administrators find more information about various issues. Enabling debug mode can speed up the process to reproduce erro... | [
"podman run -p 443:8443 -p 80:8080 -e DEBUGLOG=true -v /config:/conf/stack -v /storage:/datastorage -d {productrepo}/{quayimage}:{productminv}",
"podman logs quay",
"oc edit quayregistry <quay_registry_name> -n <quay_namespace>",
"spec: - kind: quay managed: true overrides: env: - name: DEBUGLOG value: \"true... | https://docs.redhat.com/en/documentation/red_hat_quay/3.10/html/troubleshooting_red_hat_quay/running-quay-debug-mode-intro |
5.4. Configuring IPv4 Settings | 5.4. Configuring IPv4 Settings Configuring IPv4 Settings with control-center Procedure Press the Super key to enter the Activities Overview, type Settings and then press Enter . Then, select the Network tab on the left-hand side, and the Network settings tool appears. Proceed to the section called "Configuring New Conn... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/networking_guide/sec-Configuring_IPv4_Settings |
E.2. Metadata Contents | E.2. Metadata Contents The volume group metadata contains: Information about how and when it was created Information about the volume group: The volume group information contains: Name and unique id A version number which is incremented whenever the metadata gets updated Any properties: Read/Write? Resizeable? Any admi... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/logical_volume_manager_administration/metadata_contents |
Chapter 35. Configuring TLS for Identity Management | Chapter 35. Configuring TLS for Identity Management This document describes how to configure an Identity Management server to require the TLS protocol version 1.2 in Red Hat Enterprise Linux 7.3 and later. TLS 1.2 is considered more secure than versions of TLS. If your IdM server is deployed in an environment with high... | [
"NSSProtocol TLSv1.2 NSSCipherSuite +ecdhe_ecdsa_aes_128_sha,+ecdhe_ecdsa_aes_256_sha,+ecdhe_rsa_aes_128_sha,+ecdhe_rsa_aes_256_sha,+rsa_aes_128_sha,+rsa_aes_256_sha",
"sed -i 's/^NSSProtocol .*/NSSProtocol TLSv1.2/' /etc/httpd/conf.d/nss.conf sed -i 's/^NSSCipherSuite .*/NSSCipherSuite +ecdhe_ecdsa_aes_128_sha,+... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/linux_domain_identity_authentication_and_policy_guide/configuring-tls |
8.25. ca-certificates | 8.25. ca-certificates 8.25.1. RHEA-2014:1500 - ca-certificates enhancement update Updated ca-certificates package that adds various enhancements is now available for Red Hat Enterprise Linux 6. The ca-certificates package contains a set of CA certificates chosen by the Mozilla Foundation for use with the Internet Publi... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.6_technical_notes/ca-certificates |
Preface | Preface An administrator can install Red Hat Fuse on Red Hat JBoss Enterprise Application Platform so that programmers can develop Fuse applications that run on JBoss EAP. For information about JBoss EAP, see Introduction to JBoss EAP . To install Fuse on JBoss EAP, see: Chapter 1, Installing Fuse on JBoss EAP Chapter ... | null | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/installing_on_jboss_eap/pr01 |
Chapter 10. Defining Access Control for IdM Users | Chapter 10. Defining Access Control for IdM Users Access control is a set of security features which defines who can access certain resources, such as machines, services or entries, and what kinds of operations they are allowed to perform. Identity Management provides several access control areas to make it clear what ... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/linux_domain_identity_authentication_and_policy_guide/server-access-controls |
Chapter 1. Red Hat Software Collections 3.8 | Chapter 1. Red Hat Software Collections 3.8 This chapter serves as an overview of the Red Hat Software Collections 3.8 content set. It provides a list of components and their descriptions, sums up changes in this version, documents relevant compatibility information, and lists known issues. 1.1. About Red Hat Software ... | [
"LimitRequestBody 2147483648",
"superclass mismatch for class Mark (TypeError)",
"gem 'psych' require 'psych' Gem.load_yaml",
"[mysqld] character-set-server=utf8",
"ERROR: While executing gem ... (Errno::EROFS) Read-only file system @ dir_s_mkdir - /opt/rh/rh-ruby22/root/usr/local/share/gems",
"Read-only ... | https://docs.redhat.com/en/documentation/red_hat_software_collections/3/html/3.8_release_notes/chap-RHSCL |
A.10. Shutting down Red Hat Enterprise Linux 6 Guests on a Red Hat Enterprise Linux 7 Host | A.10. Shutting down Red Hat Enterprise Linux 6 Guests on a Red Hat Enterprise Linux 7 Host Installing Red Hat Enterprise Linux 6 guest virtual machines with the Minimal installation option does not install the acpid (acpi daemon). Red Hat Enterprise Linux 7 no longer requires this package, as it has been taken over by ... | [
"yum install acpid",
"chkconfig acpid on service acpid start",
"<channel type='unix'> <source mode='bind' path='/var/lib/libvirt/qemu/guest1.agent'/> <target type='virtio' name='org.qemu.guest_agent.0'/> </channel>",
"virsh list --all Id Name State ---------------------------------- 14 guest1 running",
"vir... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/virtualization_deployment_and_administration_guide/sect-Shutting_down_rebooting_and_force_shutdown_of_a_guest_virtual_machine-Shutting_down_RednbspHat_EnterprisenbspLinuxnbsp6_guests_on_a_RednbspHat_EnterprisenbspLinuxnbsp7_host |
Getting started | Getting started OpenShift Container Platform 4.10 Getting started in OpenShift Container Platform Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.10/html/getting_started/index |
Chapter 4. AMQP | Chapter 4. AMQP AMQP is an open internet protocol for reliably sending and receiving messages. It is supported by multiple software vendors and major institutions. AMQP 1.0 became an OASIS standard in 2012 and an ISO standard in 2014. A framed protocol with session multiplexing Supports peer-to-peer and client-server c... | null | https://docs.redhat.com/en/documentation/red_hat_amq/2021.q3/html/amq_clients_overview/amqp |
Chapter 62. Red Hat Process Automation Manager versioning | Chapter 62. Red Hat Process Automation Manager versioning Red Hat Process Automation Manager versions are designated with a numerical Major.Minor.Patch format, such as 7.5.1 . In this example, the major release is 7.x.x , the minor release is 7.5.x , and the patch release is 7.5.1 . Major releases often require data mi... | null | https://docs.redhat.com/en/documentation/red_hat_process_automation_manager/7.13/html/installing_and_configuring_red_hat_process_automation_manager/product-versioning-con_patching-upgrading |
OpenID Connect (OIDC) authentication | OpenID Connect (OIDC) authentication Red Hat build of Quarkus 3.15 Red Hat Customer Content Services | null | https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.15/html/openid_connect_oidc_authentication/index |
12. Desktop | 12. Desktop nautilus-open-terminal behavior change The nautilus-open-terminal package provides a right-click "Open Terminal" option to open a new terminal window in the current directory. Previously, when this option was chosen from the Desktop, the new terminal window location defaulted to the user's home directory. H... | [
"gconftool-2 -s /apps/nautilus-open-terminal/desktop_opens_home_dir --type=bool true",
"Error while burning: You do not have the required permissions to use this drive",
". /etc/sysconfig/keyboard; echo USDLAYOUT | grep -q \",us\" && gconftool-2 --direct --config-source xml:readwrite:/var/lib/gdm/.gconf --set /... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.0_technical_notes/desktop |
1.2. Comparing Static to Dynamic IP Addressing | 1.2. Comparing Static to Dynamic IP Addressing Static IP addressing When a device is assigned a static IP address, the address does not change over time unless changed manually. It is recommended to use static IP addressing if you want: To ensure network address consistency for servers such as DNS , and authentication ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/networking_guide/sec-comparing_static_to_dynamic_ip_addressing |
Chapter 8. Operator SDK | Chapter 8. Operator SDK 8.1. Installing the Operator SDK CLI The Operator SDK provides a command-line interface (CLI) tool that Operator developers can use to build, test, and deploy an Operator. You can install the Operator SDK CLI on your workstation so that you are prepared to start authoring your own Operators. Ope... | [
"tar xvf operator-sdk-v1.31.0-ocp-linux-x86_64.tar.gz",
"chmod +x operator-sdk",
"echo USDPATH",
"sudo mv ./operator-sdk /usr/local/bin/operator-sdk",
"operator-sdk version",
"operator-sdk version: \"v1.31.0-ocp\",",
"tar xvf operator-sdk-v1.31.0-ocp-darwin-x86_64.tar.gz",
"tar xvf operator-sdk-v1.31.... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/cli_tools/operator-sdk |
Chapter 10. Using images | Chapter 10. Using images 10.1. Using images overview Use the following topics to discover the different Source-to-Image (S2I), database, and other container images that are available for OpenShift Container Platform users. Red Hat official container images are provided in the Red Hat Registry at registry.redhat.io . Op... | [
"podman inspect --format='{{ index .Config.Labels \"io.openshift.s2i.scripts-url\" }}' wildfly/wildfly-centos7",
"image:///usr/libexec/s2i",
"#!/bin/bash echo \"Before assembling\" /usr/libexec/s2i/assemble rc=USD? if [ USDrc -eq 0 ]; then echo \"After successful assembling\" else echo \"After failed assembling... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/images/using-images |
Chapter 3. Planning your environment according to object maximums | Chapter 3. Planning your environment according to object maximums Consider the following tested object maximums when you plan your OpenShift Container Platform cluster. These guidelines are based on the largest possible cluster. For smaller clusters, the maximums are lower. There are many factors that influence the sta... | [
"required pods per cluster / pods per node = total number of nodes needed",
"2200 / 500 = 4.4",
"2200 / 20 = 110",
"required pods per cluster / total number of nodes = expected pods per node",
"--- apiVersion: template.openshift.io/v1 kind: Template metadata: name: deployment-config-template creationTimesta... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/scalability_and_performance/planning-your-environment-according-to-object-maximums |
function::kernel_string2 | function::kernel_string2 Name function::kernel_string2 - Retrieves string from kernel memory with alternative error string Synopsis Arguments addr The kernel address to retrieve the string from err_msg The error message to return when data isn't available Description This function returns the null terminated C string f... | [
"kernel_string2:string(addr:long,err_msg:string)"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/systemtap_tapset_reference/api-kernel-string2 |
C.6. Selection Criteria Processing Examples | C.6. Selection Criteria Processing Examples This section provides a series of examples showing how to use selection criteria in commands that process LVM logical volumes. This example shows the initial configuration of a group of logical volumes, including thin snapshots. Thin snapshots have the "skip activation" flag ... | [
"lvs -o name,skip_activation,layout,role LV SkipAct Layout Role root linear public swap linear public lvol1 thin,sparse public lvol2 thin,sparse public,origin,thinorigin lvol3 skip activation thin,sparse public,snapshot,thinsnapshot lvol4 skip activation linear public pool thin,pool private",
"lvchange --setactiv... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/logical_volume_manager_administration/selection_processing_examples |
Chapter 16. Provisioning real-time and low latency workloads | Chapter 16. Provisioning real-time and low latency workloads Many organizations need high performance computing and low, predictable latency, especially in the financial and telecommunications industries. OpenShift Container Platform provides the Node Tuning Operator to implement automatic tuning to achieve low latency... | [
"apiVersion: v1 kind: Pod metadata: name: dynamic-low-latency-pod annotations: cpu-quota.crio.io: \"disable\" 1 cpu-load-balancing.crio.io: \"disable\" 2 irq-load-balancing.crio.io: \"disable\" 3 spec: securityContext: runAsNonRoot: true seccompProfile: type: RuntimeDefault containers: - name: dynamic-low-latency-p... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/scalability_and_performance/cnf-provisioning-low-latency-workloads |
function::kernel_string_utf32 | function::kernel_string_utf32 Name function::kernel_string_utf32 - Retrieves UTF-32 string from kernel memory Synopsis Arguments addr The kernel address to retrieve the string from Description This function returns a null terminated UTF-8 string converted from the UTF-32 string at a given kernel memory address. Reports... | [
"kernel_string_utf32:string(addr:long)"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/systemtap_tapset_reference/api-kernel-string-utf32 |
Chapter 6. Scheduling Windows container workloads | Chapter 6. Scheduling Windows container workloads You can schedule Windows workloads to Windows compute nodes. Note The WMCO is not supported in clusters that use a cluster-wide proxy because the WMCO is not able to route traffic through the proxy connection for the workloads. Prerequisites You installed the Windows Ma... | [
"apiVersion: node.k8s.io/v1beta1 kind: RuntimeClass metadata: name: <runtime_class_name> 1 handler: 'docker' scheduling: nodeSelector: 2 kubernetes.io/os: 'windows' kubernetes.io/arch: 'amd64' node.kubernetes.io/windows-build: '10.0.17763' tolerations: 3 - effect: NoSchedule key: os operator: Equal value: \"Windows... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/windows_container_support_for_openshift/scheduling-windows-workloads |
32.3.4. Displaying a Process Status | 32.3.4. Displaying a Process Status To display status of processes in the system, type the ps command at the interactive prompt. You can use ps pid to display the status of the selected process. Example 32.5. Displaying status of processes in the system Type help ps for more information on the command usage. | [
"crash> ps PID PPID CPU TASK ST %MEM VSZ RSS COMM > 0 0 0 c09dc560 RU 0.0 0 0 [swapper] > 0 0 1 f7072030 RU 0.0 0 0 [swapper] 0 0 2 f70a3a90 RU 0.0 0 0 [swapper] > 0 0 3 f70ac560 RU 0.0 0 0 [swapper] 1 0 1 f705ba90 IN 0.0 2828 1424 init ... several lines omitted 5566 1 1 f2592560 IN 0.0 12876 784 auditd 5567 1 2 ef... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/deployment_guide/s2-kdump-crash-processes |
Chapter 7. Container Images Based on Red Hat Software Collections 3.4 | Chapter 7. Container Images Based on Red Hat Software Collections 3.4 Component Description Supported architectures Application Images rhscl/nodejs-12-rhel7 Node.js 12 platform for building and running applications (EOL) x86_64, s390x, ppc64le Daemon Images rhscl/nginx-116-rhel7 nginx 1.16 server and a reverse proxy se... | null | https://docs.redhat.com/en/documentation/red_hat_software_collections/3/html/using_red_hat_software_collections_container_images/RHSCL_3.4_images |
Chapter 11. Configuring the audit log policy | Chapter 11. Configuring the audit log policy You can control the amount of information that is logged to the API server audit logs by choosing the audit log policy profile to use. 11.1. About audit log policy profiles Audit log profiles define how to log requests that come to the OpenShift API server, Kubernetes API se... | [
"oc edit apiserver cluster",
"apiVersion: config.openshift.io/v1 kind: APIServer metadata: spec: audit: profile: WriteRequestBodies 1",
"oc get kubeapiserver -o=jsonpath='{range .items[0].status.conditions[?(@.type==\"NodeInstallerProgressing\")]}{.reason}{\"\\n\"}{.message}{\"\\n\"}'",
"AllNodesAtLatestRevis... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/security_and_compliance/audit-log-policy-config |
Console APIs | Console APIs OpenShift Container Platform 4.15 Reference guide for console APIs Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/console_apis/index |
9.2.2. Adding a Node to a Cluster | 9.2.2. Adding a Node to a Cluster Adding a node to a cluster consists of updating the cluster configuration, propagating the updated configuration to the node to be added, and starting the cluster software on that node. To add a node to a cluster, perform the following steps: At any node in the cluster, edit the /etc/c... | [
"ccs_config_validate Configuration validates",
"service rgmanager stop Stopping Cluster Service Manager: [ OK ] service gfs2 stop Unmounting GFS2 filesystem (/mnt/gfsA): [ OK ] Unmounting GFS2 filesystem (/mnt/gfsB): [ OK ] service clvmd stop Signaling clvmd to exit [ OK ] clvmd terminated [ OK ] service cman sto... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/cluster_administration/s2-admin-manage-nodes-add-cli-CA |
Chapter 5. Role [rbac.authorization.k8s.io/v1] | Chapter 5. Role [rbac.authorization.k8s.io/v1] Description Role is a namespaced, logical grouping of PolicyRules that can be referenced as a unit by a RoleBinding. Type object 5.1. Specification Property Type Description apiVersion string APIVersion defines the versioned schema of this representation of an object. Serv... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/rbac_apis/role-rbac-authorization-k8s-io-v1 |
OpenShift Dedicated clusters on AWS | OpenShift Dedicated clusters on AWS OpenShift Dedicated 4 Installing OpenShift Dedicated clusters on AWS Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_dedicated/4/html-single/openshift_dedicated_clusters_on_aws/index |
7.75. httpd | 7.75. httpd 7.75.1. RHSA-2015:1249 - Low: httpd security, bug fix, and enhancement update Updated httpd packages that fix one security issue, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Low security impact. A Common Vul... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.7_technical_notes/package-httpd |
Index | Index Symbols /lib/udev/rules.d directory, udev Integration with the Device Mapper A activating logical volumes individual nodes, Activating Logical Volumes on Individual Nodes in a Cluster activating volume groups, Activating and Deactivating Volume Groups administrative procedures, LVM Administration Overview allocat... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/logical_volume_manager_administration/ix01 |
Chapter 9. PackageKit | Chapter 9. PackageKit Red Hat provides PackageKit for viewing, managing, updating, installing and uninstalling packages compatible with your system. PackageKit consists of several graphical interfaces that can be opened from the GNOME panel menu, or from the Notification Area when PackageKit alerts you that updates are... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/deployment_guide/ch-PackageKit |
B.2. Using KVM Virtualization on IBM Z | B.2. Using KVM Virtualization on IBM Z Installation On IBM Z hosts, the KVM hypervisor has to be installed in a dedicated logical partition (LPAR). Running KVM on the z/VM OS is not supported. The LPAR also has to support the start-interpretive execution (SIE) virtualization extensions. To install KVM Virtualization on... | [
"grep sie /proc/cpuinfo",
"features : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs te sie",
"modprobe kvm",
"lsmod | grep kvm",
"<cpu mode='host-model' check='partial'> <model fallback='allow'/> </cpu>",
"<cpu mode='custom' match='exact' check='partial'> <model fallback='allow'>zEC12</model> ... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/appe-KVM_on_zSystems |
Chapter 2. Adding trusted certificate authorities | Chapter 2. Adding trusted certificate authorities Learn how to add custom trusted certificate authorities to Red Hat Advanced Cluster Security for Kubernetes. If you are using an enterprise certificate authority (CA) on your network, or self-signed certificates, you must add the CA's root certificate to Red Hat Advance... | [
"chmod +x ca-setup.sh",
"./ca-setup.sh -f <certificate>",
"./ca-setup.sh -d <directory_name>",
"oc -n stackrox exec deploy/central -c central -- kill 1",
"oc -n stackrox delete pod -lapp=central",
"oc delete pod -n stackrox -l app=scanner",
"kubectl delete pod -n stackrox -l app=scanner",
"./ca-setup-... | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.5/html/configuring/add-trusted-ca |
Chapter 1. Event-Driven Ansible controller overview | Chapter 1. Event-Driven Ansible controller overview Event-Driven Ansible is a highly scalable, flexible automation capability that works with event sources such as other software vendors' monitoring tools. These tools monitor IT solutions and identify events and automatically implement the documented changes or respons... | null | https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/using_automation_decisions/eda-user-guide-overview |
Chapter 11. Managing file systems in image mode for RHEL | Chapter 11. Managing file systems in image mode for RHEL Currently, image mode for RHEL uses OSTree as a backend, and enables composefs for storage by default. The /opt and /usr/local paths are plain directories, and not symbolic links into /var . This enables you to easily install third-party content in derived contai... | [
"RUN rmdir /opt/exampleapp/logs && ln -sr /var/log/exampleapp /opt/exampleapp/logs",
"BindPaths=/var/log/exampleapp:/opt/exampleapp/logs",
"[root] transient = true"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/using_image_mode_for_rhel_to_build_deploy_and_manage_operating_systems/managing-file-systems-in-image-mode-for-rhel |
Chapter 9. Generating a cryptographic key pair | Chapter 9. Generating a cryptographic key pair To ensure secure data transmission between the Red Hat Update Appliance (RHUA), content delivery system (CDS), and HAProxy nodes, and to use rhui-manager to set up those nodes, you must generate a key pair on the RHUA node and copy the public key to CDS and HAProxy nodes. ... | [
"ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/USER/.ssh/id_rsa): Created directory '/home/USER/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/USER/.ssh/id_rsa. Your public key has bee... | https://docs.redhat.com/en/documentation/red_hat_update_infrastructure/4/html/installing_red_hat_update_infrastructure/assembly_generating-a-cryptographic-key-pair_installing-red-hat-update-infrastructure |
Chapter 4. Installing an IdM server: With integrated DNS, with an external CA as the root CA | Chapter 4. Installing an IdM server: With integrated DNS, with an external CA as the root CA Installing a new Identity Management (IdM) server with integrated DNS has the following advantages: You can automate much of the maintenance and DNS record management using native IdM tools. For example, DNS SRV records are aut... | [
"ipa-server-install --external-ca",
"ipa-server-install --external-ca --external-ca-type=ms-cs --external-ca-profile= <oid>/<name>/default",
"ipa-server-install --external-ca",
"Do you want to configure integrated DNS (BIND)? [no]: yes",
"Server host name [ server.idm.example.com ]: Please confirm the domai... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/installing_identity_management/installing-an-ipa-server-with-external-ca_installing-identity-management |
10.5. Supported Installation Targets | 10.5. Supported Installation Targets An installation target is a storage device that will store Red Hat Enterprise Linux and boot the system. Red Hat Enterprise Linux supports the following installation targets for AMD64 and Intel 64 systems: Storage connected by a standard internal interface, such as SCSI, SATA, or SA... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/installation_guide/sect-installation-planning-supported-hardware-ppc |
Chapter 5. Configuring the Nagios Plugins for Ceph | Chapter 5. Configuring the Nagios Plugins for Ceph Configure the Nagios plug-ins for Red Hat Ceph Storage cluster. Prerequisites Root-level access to the Ceph Monitor host and Nagios Core Server. A running Red Hat Ceph Storage cluster. Procedure Log in to the Ceph monitor host and create a Ceph key and keyring for Nagi... | [
"ssh user@host01 [user@host01 ~]USD sudo su - cd /etc/ceph ceph auth get-or-create client.nagios mon 'allow r' > client.nagios.keyring",
"vi /usr/local/nagios/etc/nrpe.cfg",
"command[check_ceph_health]=/usr/lib/nagios/plugins/check_ceph_health --id nagios --keyring /etc/ceph/client.nagios.keyring",
"systemctl... | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/6/html/monitoring_ceph_with_nagios_guide/configuring-the-nagios-plugins-for-ceph_nagios |
Chapter 4. Configuring RoCE | Chapter 4. Configuring RoCE Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE) is a network protocol that utilizes RDMA over an Ethernet network. For configuration, RoCE requires specific hardware and some of the hardware vendors are Mellanox, Broadcom, and QLogic. 4.1. Overview of RoCE protocol versions... | [
"mkdir /sys/kernel/config/rdma_cm/ mlx5_0 /",
"cat /sys/kernel/config/rdma_cm/ mlx5_0 /ports/ 1 /default_roce_mode RoCE v2",
"echo \"IB/RoCE v1\" > /sys/kernel/config/rdma_cm/ mlx5_0 /ports/ 1 /default_roce_mode",
"yum install iproute libibverbs libibverbs-utils infiniband-diags",
"rdma link show",
"rdma ... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/configuring_infiniband_and_rdma_networks/configuring-roce_configuring-infiniband-and-rdma-networks |
Chapter 9. Integrating with Google Cloud Storage | Chapter 9. Integrating with Google Cloud Storage You can integrate with Google Cloud Storage (GCS) to enable data backups. You can use these backups for data restoration in the case of an infrastructure disaster, or corrupt data. After you integrate with GCS, you can schedule daily or weekly backups and do manual on-de... | null | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.6/html/integrating/integrate-with-google-cloud-storage |
Chapter 36. System and Subscription Management | Chapter 36. System and Subscription Management The yum updateinfo commands now respect skip_if_unavailable option If a repository was configured with the skip_if_unavailable=1 option, the yum commands operating on the updateinfo metadata, such as yum updateinfo or yum check-update --security , did not work correctly. C... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.6_release_notes/bug_fixes_system_and_subscription_management |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.9/html/scaling_storage/making-open-source-more-inclusive |
10.5.19. ServerName | 10.5.19. ServerName ServerName specifies a hostname and port number (matching the Listen directive) for the server. The ServerName does not need to match the machine's actual hostname. For example, the Web server may be www.example.com , but the server's hostname is actually foo.example.com . The value specified in Ser... | [
"ServerName www.example.com:80"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/reference_guide/s2-apache-servername |
Chapter 1. Dynamically provisioned OpenShift Data Foundation deployed on AWS | Chapter 1. Dynamically provisioned OpenShift Data Foundation deployed on AWS 1.1. Replacing operational or failed storage devices on AWS user-provisioned infrastructure When you need to replace a device in a dynamically created storage cluster on an AWS user-provisioned infrastructure, you must replace the storage node... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.16/html/replacing_devices/dynamically_provisioned_openshift_data_foundation_deployed_on_aws |
Chapter 25. FTP Source | Chapter 25. FTP Source Receive data from an FTP Server. 25.1. Configuration Options The following table summarizes the configuration options available for the ftp-source Kamelet: Property Name Description Type Default Example connectionHost * Connection Host Hostname of the FTP server string connectionPort * Connection... | [
"apiVersion: camel.apache.org/v1alpha1 kind: KameletBinding metadata: name: ftp-source-binding spec: source: ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: ftp-source properties: connectionHost: \"The Connection Host\" directoryName: \"The Directory Name\" password: \"The Password\" username: \"The ... | https://docs.redhat.com/en/documentation/red_hat_build_of_apache_camel_k/1.10.5/html/kamelets_reference/ftp-source |
Chapter 2. Installation | Chapter 2. Installation This chapter describes in detail how to get access to the content set, install Red Hat Software Collections 3.2 on the system, and rebuild Red Hat Software Collections. 2.1. Getting Access to Red Hat Software Collections The Red Hat Software Collections content set is available to customers with... | [
"rhel- variant -rhscl-6-rpms rhel- variant -rhscl-6-debug-rpms rhel- variant -rhscl-6-source-rpms rhel-server-rhscl-6-eus-rpms rhel-server-rhscl-6-eus-source-rpms rhel-server-rhscl-6-eus-debug-rpms rhel- variant -rhscl-7-rpms rhel- variant -rhscl-7-debug-rpms rhel- variant -rhscl-7-source-rpms rhel-server-rhscl-7-e... | https://docs.redhat.com/en/documentation/red_hat_software_collections/3/html/3.2_release_notes/chap-installation |
probe::stap.system | probe::stap.system Name probe::stap.system - Starting a command from stap Synopsis stap.system Values command the command string to be run by posix_spawn (as sh -c <str>) Description Fires at the entry of the stap_system command. | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/api-stap-system |
Configuring dynamic plugins | Configuring dynamic plugins Red Hat Developer Hub 1.4 Red Hat Customer Content Services | null | https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.4/html/configuring_dynamic_plugins/index |
5.4. Virtualization | 5.4. Virtualization qemu-kvm component, BZ# 1159613 If a virtio device is created where the number of vectors is set to a value higher than 32, the device behaves as if it was set to a zero value on Red Hat Enterprise Linux 6, but not on Enterprise Linux 7. The resulting vector setting mismatch causes a migration error... | [
"CPU0: update failed (for patch_level=0x6000624)"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.4_technical_notes/virtualization_issues |
Chapter 2. Configuring an AWS account | Chapter 2. Configuring an AWS account Before you can install OpenShift Container Platform, you must configure an Amazon Web Services (AWS) account. 2.1. Configuring Route 53 To install OpenShift Container Platform, the Amazon Web Services (AWS) account you use must have a dedicated public hosted zone in your Route 53 s... | [
"platform: aws: region: us-gov-west-1 serviceEndpoints: - name: ec2 url: https://ec2.us-gov-west-1.amazonaws.com - name: elasticloadbalancing url: https://elasticloadbalancing.us-gov-west-1.amazonaws.com - name: route53 url: https://route53.us-gov.amazonaws.com 1 - name: tagging url: https://tagging.us-gov-west-1.a... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/installing_on_aws/installing-aws-account |
Pipelines | Pipelines OpenShift Container Platform 4.12 A cloud-native continuous integration and continuous delivery solution based on Kubernetes resources Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/pipelines/index |
Chapter 5. Configuration options | Chapter 5. Configuration options This chapter lists the available configuration options for AMQ Core Protocol JMS. JMS configuration options are set as query parameters on the connection URI. For more information, see Section 4.3, "Connection URIs" . 5.1. General options user The user name the client uses to authentica... | null | https://docs.redhat.com/en/documentation/red_hat_amq_core_protocol_jms/7.11/html/using_amq_core_protocol_jms/configuration_options |
Chapter 8. ServiceMonitor [monitoring.coreos.com/v1] | Chapter 8. ServiceMonitor [monitoring.coreos.com/v1] Description ServiceMonitor defines monitoring for a set of services. Type object Required spec 8.1. Specification Property Type Description apiVersion string APIVersion defines the versioned schema of this representation of an object. Servers should convert recognize... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/monitoring_apis/servicemonitor-monitoring-coreos-com-v1 |
6.4. CPU Quality of Service | 6.4. CPU Quality of Service CPU quality of service defines the maximum amount of processing capability a virtual machine can access on the host on which it runs, expressed as a percent of the total processing capability available to that host. Assigning CPU quality of service to a virtual machine allows you to prevent ... | null | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.3/html/administration_guide/sect-cpu_quality_of_service |
8.222. tuned | 8.222. tuned 8.222.1. RHBA-2013:1623 - tuned bug fix and enhancement update Updated tuned packages that fix several bugs and add one enhancement are now available for Red Hat Enterprise Linux 6. The tuned packages contain a daemon that tunes system settings dynamically. It does so by monitoring the usage of several sys... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.5_technical_notes/tuned |
Appendix B. Business Central system properties | Appendix B. Business Central system properties The Business Central system properties listed in this section are passed to standalone*.xml files. Git directory Use the following properties to set the location and name for the Business Central Git directory: org.uberfire.nio.git.dir : Location of the Business Central Gi... | null | https://docs.redhat.com/en/documentation/red_hat_decision_manager/7.13/html/installing_and_configuring_red_hat_decision_manager/business-central-system-properties-ref_install-on-jws |
Chapter 1. OpenShift image registry overview | Chapter 1. OpenShift image registry overview OpenShift Container Platform can build images from your source code, deploy them, and manage their lifecycle. It provides an internal, integrated container image registry that can be deployed in your OpenShift Container Platform environment to locally manage images. This ove... | [
"podman login registry.redhat.io Username:<your_registry_account_username> Password:<your_registry_account_password>",
"podman pull registry.redhat.io/<repository_name>"
] | https://docs.redhat.com/en/documentation/openshift_container_platform/4.11/html/registry/registry-overview-1 |
Introducing Red Hat AMQ 7 | Introducing Red Hat AMQ 7 Red Hat AMQ 2020.Q4 Overview of Features and Components | null | https://docs.redhat.com/en/documentation/red_hat_amq/2020.q4/html/introducing_red_hat_amq_7/index |
2.2.3.2. Use a Password-like NIS Domain Name and Hostname | 2.2.3.2. Use a Password-like NIS Domain Name and Hostname Any machine within a NIS domain can use commands to extract information from the server without authentication, as long as the user knows the NIS server's DNS hostname and NIS domain name. For instance, if someone either connects a laptop computer into the netwo... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-securing_nis-use_a_password_like_nis_domain_name_and_hostname |
7.3. Configuring HugeTLB Huge Pages | 7.3. Configuring HugeTLB Huge Pages Starting with Red Hat Enterprise Linux 7.1, there are two ways of reserving huge pages: at boot time and at run time . Reserving at boot time increases the possibility of success because the memory has not yet been significantly fragmented. However, on NUMA machines, the number of pa... | [
"default_hugepagesz=1G hugepagesz=1G",
"grub2-mkconfig -o /boot/grub2/grub.cfg",
"grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg",
"[Unit] Description=HugeTLB Gigantic Pages Reservation DefaultDependencies=no Before=dev-hugepages.mount ConditionPathExists=/sys/devices/system/node ConditionKernelCommandLine=h... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/performance_tuning_guide/sect-Red_Hat_Enterprise_Linux-Performance_Tuning_Guide-Memory-Configuring-huge-pages |
A.6. Virtualization Logs | A.6. Virtualization Logs The following methods can be used to access logged data about events on your hypervisor and your guests. This can be helpful when troubleshooting virtualization on your system. Each guest has a log, saved in the /var/log/libvirt/qemu/ directory. The logs are named GuestName .log and are periodi... | [
"auvirt --start today --vm testguest --summary Range of time for report: Mon Sep 4 16:44 - Mon Sep 4 17:04 Number of guest starts: 2 Number of guest stops: 1 Number of resource assignments: 14 Number of related AVCs: 0 Number of related anomalies: 0 Number of host shutdowns: 0 Number of failed operations: 0"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-troubleshooting-virtualization_log_files |
Chapter 6. Creating Ansible playbooks with the all-in-one Red Hat OpenStack Platform environment | Chapter 6. Creating Ansible playbooks with the all-in-one Red Hat OpenStack Platform environment The deployment command applies Ansible playbooks to the environment automatically. However, you can modify the deployment command to generate Ansible playbooks without applying them to the deployment, and run the playbooks ... | [
"[stack@all-in-one]USD sudo openstack tripleo deploy --templates --local-ip=USDIP/USDNETMASK -e /usr/share/openstack-tripleo-heat-templates/environments/standalone/standalone-tripleo.yaml -r /usr/share/openstack-tripleo-heat-templates/roles/Standalone.yaml -e USDHOME/containers-prepare-parameters.yaml -e USDHOME/st... | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/16.2/html/standalone_deployment_guide/creating-ansible-playbooks |
Chapter 5. Using secure communications between two systems with OpenSSH | Chapter 5. Using secure communications between two systems with OpenSSH SSH (Secure Shell) is a protocol which provides secure communications between two systems using a client-server architecture and allows users to log in to server host systems remotely. Unlike other remote communication protocols, such as FTP or Tel... | [
"ssh-keygen -t ecdsa Generating public/private ecdsa key pair. Enter file in which to save the key (/home/ <username> /.ssh/id_ecdsa): Enter passphrase (empty for no passphrase): <password> Enter same passphrase again: <password> Your identification has been saved in /home/ <username> /.ssh/id_ecdsa. Your public ke... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/configuring_basic_system_settings/assembly_using-secure-communications-between-two-systems-with-openssh_configuring-basic-system-settings |
15.4. Verifying Media | 15.4. Verifying Media The DVD offers an option to verify the integrity of the media. Recording errors sometimes occur while producing DVD media. An error in the data for package chosen in the installation program can cause the installation to abort. To minimize the chances of data errors affecting the installation, ver... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/installation_guide/ch15s04 |
Chapter 15. Network flows format reference | Chapter 15. Network flows format reference These are the specifications for network flows format, used both internally and when exporting flows to Kafka. 15.1. Network Flows format reference This is the specification of the network flows format. That format is used when a Kafka exporter is configured, for Prometheus me... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/network_observability/json-flows-format-reference |
Chapter 11. Pacemaker Rules | Chapter 11. Pacemaker Rules Rules can be used to make your configuration more dynamic. One use of rules might be to assign machines to different processing groups (using a node attribute) based on time and to then use that attribute when creating location constraints. Each rule can contain a number of expressions, date... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/high_availability_add-on_reference/ch-pacemakerrules-HAAR |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.0/html/transitioning_to_containerized_services/making-open-source-more-inclusive |
Pipelines CLI (tkn) reference | Pipelines CLI (tkn) reference Red Hat OpenShift Pipelines 1.15 The tkn CLI reference for OpenShift Pipelines Red Hat OpenShift Documentation Team | [
"tar xvzf <file>",
"echo USDPATH",
"subscription-manager register",
"subscription-manager refresh",
"subscription-manager list --available --matches '*pipelines*'",
"subscription-manager attach --pool=<pool_id>",
"subscription-manager repos --enable=\"pipelines-1.15-for-rhel-8-x86_64-rpms\"",
"subscri... | https://docs.redhat.com/en/documentation/red_hat_openshift_pipelines/1.15/html-single/pipelines_cli_tkn_reference/index |
Chapter 2. What Changed in this Release? | Chapter 2. What Changed in this Release? 2.1. What's New in this Release? This section describes the key features and enhancements in the Red Hat Gluster Storage 3.5 release. Red Hat Gluster Storage has been updated to upstream glusterfs version 6. Samba has been updated to upstream version 4.9.8. NFS-Ganesha is update... | [
"glfs_set_statedump_path(fs2, \"/tmp\");"
] | https://docs.redhat.com/en/documentation/red_hat_gluster_storage/3.5/html/3.5_release_notes/chap-Documentation-3.5_Release_Notes-Whats_New |
Appendix A. Using your subscription | Appendix A. Using your subscription Streams for Apache Kafka is provided through a software subscription. To manage your subscriptions, access your account at the Red Hat Customer Portal. Accessing Your Account Go to access.redhat.com . If you do not already have an account, create one. Log in to your account. Activati... | [
"dnf install <package_name>",
"dnf install <path_to_download_package>"
] | https://docs.redhat.com/en/documentation/red_hat_streams_for_apache_kafka/2.9/html/streams_for_apache_kafka_on_openshift_overview/using_your_subscription |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.17/html/deploying_openshift_data_foundation_using_amazon_web_services/making-open-source-more-inclusive |
4.52. dump | 4.52. dump 4.52.1. RHBA-2011:1095 - dump bug fix update Updated dump packages that fix three bugs are now available for Red Hat Enterprise Linux 6. The dump package contains both "dump" and "restore" commands. The "dump" command examines files in a file system, determines which ones need to be backed up, and copies tho... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.2_technical_notes/dump |
Chapter 1. Red Hat OpenShift support for Windows Containers overview | Chapter 1. Red Hat OpenShift support for Windows Containers overview Red Hat OpenShift support for Windows Containers is a feature providing the ability to run Windows compute nodes in an OpenShift Container Platform cluster. This is possible by using the Red Hat Windows Machine Config Operator (WMCO) to install and ma... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/windows_container_support_for_openshift/windows-container-overview |
15.4. Shared Storage Example: NFS for a Simple Migration | 15.4. Shared Storage Example: NFS for a Simple Migration Important This example uses NFS to share guest virtual machine images with other KVM host physical machines. Although not practical for large installations, it is presented to demonstrate migration techniques only. Do not use this example for migrating or running... | [
"/var/lib/libvirt/images *.example.com (rw,no_root_squash,sync)",
"yum install nfs-utils",
"systemctl start nfs-server",
"mount storage_host :/var/lib/libvirt/images /var/lib/libvirt/images"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/virtualization_deployment_and_administration_guide/sect-KVM_live_migration-Shared_storage_example_NFS_for_a_simple_migration |
Node APIs | Node APIs OpenShift Container Platform 4.17 Reference guide for node APIs Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/node_apis/index |
Chapter 2. Installing the Self-hosted Engine Deployment Host | Chapter 2. Installing the Self-hosted Engine Deployment Host A self-hosted engine can be deployed from a Red Hat Virtualization Host or a Red Hat Enterprise Linux host . Important If you plan to use bonded interfaces for high availability or VLANs to separate different types of traffic (for example, for storage or mana... | [
"subscription-manager repos --enable=rhvh-4-for-rhel-8-x86_64-rpms",
"rpm -Uvh http://satellite.example.com/pub/katello-ca-consumer-latest.noarch.rpm # subscription-manager register --org=\" org_id \" # subscription-manager list --available # subscription-manager attach --pool= pool_id # subscription-manager repo... | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.4/html/migrating_from_a_standalone_manager_to_a_self-hosted_engine/installing_the_self-hosted_engine_deployment_host_migrating_to_she |
Chapter 11. Monitoring application health by using health checks | Chapter 11. Monitoring application health by using health checks In software systems, components can become unhealthy due to transient issues such as temporary connectivity loss, configuration errors, or problems with external dependencies. OpenShift Container Platform applications have a number of options to detect an... | [
"apiVersion: v1 kind: Pod metadata: labels: test: health-check name: my-application spec: containers: - name: goproxy-app 1 args: image: registry.k8s.io/goproxy:0.1 2 readinessProbe: 3 exec: 4 command: 5 - cat - /tmp/healthy",
"apiVersion: v1 kind: Pod metadata: labels: test: health-check name: my-application spe... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/building_applications/application-health |
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