title stringlengths 4 168 | content stringlengths 7 1.74M | commands listlengths 1 5.62k ⌀ | url stringlengths 79 342 |
|---|---|---|---|
Chapter 7. Creating and managing topics | Chapter 7. Creating and managing topics Messages in Kafka are always sent to or received from a topic. This chapter describes how to create and manage Kafka topics. 7.1. Partitions and replicas A topic is always split into one or more partitions. Partitions act as shards. That means that every message sent by a produce... | [
"auto.create.topics.enable=false",
"delete.topic.enable=false",
"/opt/kafka/bin/kafka-topics.sh --bootstrap-server <broker_address> --create --topic <TopicName> --partitions <NumberOfPartitions> --replication-factor <ReplicationFactor> --config <Option1> = <Value1> --config <Option2> = <Value2>",
"/opt/kafka/... | https://docs.redhat.com/en/documentation/red_hat_streams_for_apache_kafka/2.7/html/using_streams_for_apache_kafka_on_rhel_with_zookeeper/topics-str |
12.0 Release Notes | 12.0 Release Notes Red Hat Developer Toolset 12 Release Notes for Red Hat Developer Toolset 12.0 Lenka Spackova Red Hat Customer Content Services lspackova@redhat.com Jaromir Hradilek Red Hat Customer Content Services jhradilek@redhat.com Eliska Slobodova Red Hat Customer Content Services | null | https://docs.redhat.com/en/documentation/red_hat_developer_toolset/12/html/12.0_release_notes/index |
4.4. Logical Volume Administration | 4.4. Logical Volume Administration This section describes the commands that perform the various aspects of logical volume administration. 4.4.1. Creating Linear Logical Volumes To create a logical volume, use the lvcreate command. If you do not specify a name for the logical volume, the default name lvol # is used wher... | [
"lvcreate -L 10G vg1",
"lvcreate -L 1500 -n testlv testvg",
"lvcreate -L 50G -n gfslv vg0",
"lvcreate -l 60%VG -n mylv testvg",
"lvcreate -l 100%FREE -n yourlv testvg",
"vgdisplay testvg | grep \"Total PE\" Total PE 10230 lvcreate -l 10230 -n mylv testvg",
"lvcreate -L 1500 -n testlv testvg /dev/sdg1",
... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/logical_volume_manager_administration/lv?extIdCarryOver=true&sc_cid=701f2000001Css5AAC |
Chapter 3. Distribution of content in RHEL 8 | Chapter 3. Distribution of content in RHEL 8 3.1. Installation Red Hat Enterprise Linux 8 is installed using ISO images. Two types of ISO image are available for the AMD64, Intel 64-bit, 64-bit ARM, IBM Power Systems, and IBM Z architectures: Binary DVD ISO: A full installation image that contains the BaseOS and AppStr... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.2_release_notes/distribution-of-content-in-rhel-8 |
9.4. Security Technical Implementation Guide | 9.4. Security Technical Implementation Guide A Security Technical Implementation Guide (STIG) is a methodology for standardized secure installation and maintenance of computer software and hardware. See the following URL for more information on STIG: https://public.cyber.mil/stigs/ . | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/security_guide/sec-security_technical_implementation_guide |
Chapter 24. Automatically discovering bare metal nodes | Chapter 24. Automatically discovering bare metal nodes You can use auto-discovery to register overcloud nodes and generate their metadata, without the need to create an instackenv.json file. This improvement can help to reduce the time it takes to collect information about a node. For example, if you use auto-discovery... | [
"enable_node_discovery = True discovery_default_driver = ipmi",
"[ { \"description\": \"Set default IPMI credentials\", \"conditions\": [ {\"op\": \"eq\", \"field\": \"data://auto_discovered\", \"value\": true} ], \"actions\": [ {\"action\": \"set-attribute\", \"path\": \"driver_info/ipmi_username\", \"value\": \... | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.0/html/director_installation_and_usage/assembly_automatically-discovering-bare-metal-nodes |
4.14. Using Shared System Certificates | 4.14. Using Shared System Certificates The Shared System Certificates storage allows NSS, GnuTLS, OpenSSL, and Java to share a default source for retrieving system certificate anchors and black list information. By default, the trust store contains the Mozilla CA list, including positive and negative trust. The system ... | [
"cp ~/certificate-trust-examples/Cert-trust-test-ca.pem /usr/share/pki/ca-trust-source/anchors/ update-ca-trust",
"trust usage: trust command <args> Common trust commands are: list List trust or certificates extract Extract certificates and trust extract-compat Extract trust compatibility bundles anchor Add, remo... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/security_guide/sec-shared-system-certificates |
4.10. Configuring Fencing Levels | 4.10. Configuring Fencing Levels Pacemaker supports fencing nodes with multiple devices through a feature called fencing topologies. To implement topologies, create the individual devices as you normally would and then define one or more fencing levels in the fencing-topology section in the configuration. Each level is... | [
"pcs stonith level add level node devices",
"pcs stonith level",
"pcs stonith level add 1 rh7-2 my_ilo pcs stonith level add 2 rh7-2 my_apc pcs stonith level Node: rh7-2 Level 1 - my_ilo Level 2 - my_apc",
"pcs stonith level remove level [ node_id ] [ stonith_id ] ... [ stonith_id ]",
"pcs stonith level cle... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/configuring_the_red_hat_high_availability_add-on_with_pacemaker/s1-fencelevels-haar |
Chapter 17. Installing a three-node cluster on AWS | Chapter 17. Installing a three-node cluster on AWS In OpenShift Container Platform version 4.15, you can install a three-node cluster on Amazon Web Services (AWS). A three-node cluster consists of three control plane machines, which also act as compute machines. This type of cluster provides a smaller, more resource ef... | [
"apiVersion: v1 baseDomain: example.com compute: - name: worker platform: {} replicas: 0",
"apiVersion: config.openshift.io/v1 kind: Scheduler metadata: creationTimestamp: null name: cluster spec: mastersSchedulable: true policy: name: \"\" status: {}"
] | https://docs.redhat.com/en/documentation/openshift_container_platform_installation/4.15/html/installing_on_aws/installing-aws-three-node |
Chapter 2. Upgrading to Red Hat Ansible Automation Platform 2.4 | Chapter 2. Upgrading to Red Hat Ansible Automation Platform 2.4 To upgrade your Red Hat Ansible Automation Platform, start by reviewing planning information to ensure a successful upgrade. You can then download the desired version of the Ansible Automation Platform installer, configure the inventory file in the install... | [
"tar xvzf ansible-automation-platform-setup-<latest-version>.tar.gz",
"sudo dnf install --enablerepo=ansible-automation-platform-2.4-for-rhel-8-x86_64-rpms ansible-automation-platform-installer",
"sudo dnf install --enablerepo=ansible-automation-platform-2.4-for-rhel-9-x86_64-rpms ansible-automation-platform-in... | https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.4/html/red_hat_ansible_automation_platform_upgrade_and_migration_guide/aap-upgrading-platform |
Preface | Preface You can install Red Hat Developer Hub on Microsoft Azure Kubernetes Service (AKS) using one of the following methods: The Red Hat Developer Hub Operator The Red Hat Developer Hub Helm chart | null | https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.4/html/installing_red_hat_developer_hub_on_microsoft_azure_kubernetes_service/pr01 |
Chapter 7. Managing DNS records in IdM | Chapter 7. Managing DNS records in IdM This chapter describes how to manage DNS records in Identity Management (IdM). As an IdM administrator, you can add, modify and delete DNS records in IdM. The chapter contains the following sections: DNS records in IdM Adding DNS resource records from the IdM Web UI Adding DNS res... | [
"ipa dnsrecord-add zone_name record_name -- record_type_option=data",
"ipa dnsrecord-add idm.example.com host1 --a-rec=192.168.122.123",
"ipa dnsrecord-del example.com www --a-rec 192.0.2.1"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/working_with_dns_in_identity_management/managing-dns-records-in-idm_working-with-dns-in-identity-management |
8.38. evolution | 8.38. evolution 8.38.1. RHSA-2013:1540 - Low: evolution security, bug fix, and enhancement update Updated evolution packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low se... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.5_technical_notes/evolution |
Chapter 1. Connecting RHEL systems directly to AD using SSSD | Chapter 1. Connecting RHEL systems directly to AD using SSSD To connect a RHEL system to Active Directory (AD), use: System Security Services Daemon (SSSD) for identity and authentication realmd to detect available domains and configure the underlying RHEL system services. 1.1. Overview of direct integration using SSSD... | [
"dnf install samba-common-tools realmd oddjob oddjob-mkhomedir sssd adcli krb5-workstation",
"realm discover ad.example.com ad.example.com type: kerberos realm-name: AD.EXAMPLE.COM domain-name: ad.example.com configured: no server-software: active-directory client-software: sssd required-package: oddjob required-... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/integrating_rhel_systems_directly_with_windows_active_directory/connecting-rhel-systems-directly-to-ad-using-sssd_integrating-rhel-systems-directly-with-active-directory |
Chapter 29. Delegating permissions to user groups to manage users using IdM CLI | Chapter 29. Delegating permissions to user groups to manage users using IdM CLI Delegation is one of the access control methods in IdM, along with self-service rules and role-based access control (RBAC). You can use delegation to assign permissions to one group of users to manage entries for another group of users. Thi... | [
"ipa delegation-add \"basic manager attributes\" --permissions=read --permissions=write --attrs=businesscategory --attrs=departmentnumber --attrs=employeetype --attrs=employeenumber --group=managers --membergroup=employees ------------------------------------------- Added delegation \"basic manager attributes\" ---... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_idm_users_groups_hosts_and_access_control_rules/delegating-permissions-to-user-groups-to-manage-users-using-idm-cli_managing-users-groups-hosts |
Chapter 4. Technology previews | Chapter 4. Technology previews This section describes technology preview features introduced in Red Hat OpenShift Data Foundation 4.9 under Technology Preview support limitations. Important Technology Preview features are provided with a limited support scope, as detailed on the Customer Portal: Technology Preview Feat... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.9/html/4.9_release_notes/technology_previews |
1.7. Listing Enabled Software Collections | 1.7. Listing Enabled Software Collections To get a list of Software Collections that are enabled in the current session, print the USDX_SCLS environment variable by running the following command: echo USDX_SCLS | null | https://docs.redhat.com/en/documentation/red_hat_software_collections/3/html/packaging_guide/sect-listing_enabled_software_collections |
Chapter 5. Installing a three-node cluster on Nutanix | Chapter 5. Installing a three-node cluster on Nutanix In OpenShift Container Platform version 4.16, you can install a three-node cluster on Nutanix. A three-node cluster consists of three control plane machines, which also act as compute machines. This type of cluster provides a smaller, more resource efficient cluster... | [
"apiVersion: v1 baseDomain: example.com compute: - name: worker platform: {} replicas: 0"
] | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/installing_on_nutanix/installing-nutanix-three-node |
Preface | Preface Open Java Development Kit (OpenJDK) is a free and open source implementation of the Java Platform, Standard Edition (Java SE). The Red Hat build of OpenJDK is available in three versions: 8u, 11u, and 17u. Packages for the Red Hat build of OpenJDK are made available on Red Hat Enterprise Linux and Microsoft Win... | null | https://docs.redhat.com/en/documentation/red_hat_build_of_openjdk/17/html/release_notes_for_red_hat_build_of_openjdk_17.0.6/pr01 |
Chapter 305. SIP Component | Chapter 305. SIP Component Available as of Camel version 2.5 The sip component in Camel is a communication component, based on the Jain SIP implementation (available under the JCP license). Session Initiation Protocol (SIP) is an IETF-defined signaling protocol, widely used for controlling multimedia communication sess... | [
"<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-sip</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency>",
"sip://johndoe@localhost:99999[?options] sips://johndoe@localhost:99999/[?options]",
"sip:uri",
"producerTemplate.sendBodyAndHe... | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/apache_camel_component_reference/sip-component |
Chapter 6. Deploying Event-Driven Ansible controller with Red Hat Ansible Automation Platform Operator on Red Hat OpenShift Container Platform | Chapter 6. Deploying Event-Driven Ansible controller with Red Hat Ansible Automation Platform Operator on Red Hat OpenShift Container Platform Event-Driven Ansible controller is the interface for event-driven automation and introduces automated resolution of IT requests. This component helps you connect to sources of e... | [
"extra_settings: - setting: EDA_MAX_RUNNING_ACTIVATIONS value: '12' database: resource_requirements: requests: cpu: 200m memory: 512Mi storage_requirements: requests: storage: 100Gi"
] | https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.4/html/deploying_the_red_hat_ansible_automation_platform_operator_on_openshift_container_platform/deploy-eda-controller-on-aap-operator-ocp |
Chapter 2. Conclusion | Chapter 2. Conclusion Using the procedure you can: Create groups with permissions to curate namespaces and upload collections to it. Add information and resources to the namespace that helps end users of the collection in their automation tasks. Upload a collection to the namespace. Review the namespace import logs to ... | null | https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.3/html/curating_collections_using_namespaces_in_automation_hub/conclusion |
Chapter 1. Installing and Configuring Data Warehouse | Chapter 1. Installing and Configuring Data Warehouse 1.1. Overview of Configuring Data Warehouse You can install and configure Data Warehouse on the same machine as the Manager, or on a separate machine with access to the Manager: Install and configure Data Warehouse on the Manager machine This configuration requires o... | [
"Configure Data Warehouse on this host (Yes, No) [Yes]: No"
] | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.4/html/data_warehouse_guide/chap-installing_and_configuring_data_warehouse |
Chapter 2. Learn more about OpenShift Container Platform | Chapter 2. Learn more about OpenShift Container Platform Use the following sections to find content to help you learn about and use OpenShift Container Platform. 2.1. Architect Learn about OpenShift Container Platform Plan an OpenShift Container Platform deployment Additional resources Enterprise Kubernetes with OpenSh... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.10/html/about/learn_more_about_openshift |
Installation and Configuration Guide | Installation and Configuration Guide Red Hat Enterprise Linux Atomic Host 7 Installation and Configuration Guide Red Hat Atomic Host Documentation Team appinfra-docs@redhat.com | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_atomic_host/7/html/installation_and_configuration_guide/index |
Release Notes for Connectivity Link 1.0 | Release Notes for Connectivity Link 1.0 Red Hat Connectivity Link 1.0 What's new in Red Hat Connectivity Link Red Hat Connectivity Link documentation team | null | https://docs.redhat.com/en/documentation/red_hat_connectivity_link/1.0/html/release_notes_for_connectivity_link_1.0/index |
22.16.8. Adding a Manycast Server Address | 22.16.8. Adding a Manycast Server Address To add a manycast server address, that is to say, to configure an address to allow the clients to discover the server by multicasting NTP packets, make use of the manycastserver command in the ntp.conf file. The manycastserver command takes the following form: manycastserver ad... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/deployment_guide/s2_adding_a_manycastserver_address |
10.5.13. ExtendedStatus | 10.5.13. ExtendedStatus The ExtendedStatus directive controls whether Apache generates basic ( off ) or detailed server status information ( on ), when the server-status handler is called. The server-status handler is called using Location tags. More information on calling server-status is included in Section 10.5.60, ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/reference_guide/s2-apache-extendedstatus |
Chapter 2. Integrating with CI systems | Chapter 2. Integrating with CI systems Red Hat Advanced Cluster Security for Kubernetes (RHACS) integrates with a variety of continuous integration (CI) products. Before you deploy images, you can use RHACS to apply build-time and deploy-time security rules to your images. After images are built and pushed to a registr... | [
"export ROX_API_TOKEN=<api_token>",
"roxctl central debug dump --token-file <token_file>",
"arch=\"USD(uname -m | sed \"s/x86_64//\")\"; arch=\"USD{arch:+-USDarch}\"",
"curl -L -f -o roxctl \"https://mirror.openshift.com/pub/rhacs/assets/4.6.3/bin/Linux/roxctlUSD{arch}\"",
"chmod +x roxctl",
"echo USDPATH... | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.6/html/integrating/integrate-with-ci-systems |
Chapter 7. Managing alerts on the Ceph dashboard | Chapter 7. Managing alerts on the Ceph dashboard As a storage administrator, you can see the details of alerts and create silences for them on the Red Hat Ceph Storage dashboard. This includes the following pre-defined alerts: CephadmDaemonFailed CephadmPaused CephadmUpgradeFailed CephDaemonCrash CephDeviceFailurePredi... | [
"cephadm shell",
"ceph dashboard set-alertmanager-api-host ALERTMANAGER_API_HOST : PORT",
"ceph dashboard set-alertmanager-api-host http://10.0.0.101:9093 Option ALERTMANAGER_API_HOST updated",
"ceph dashboard set-prometheus-api-host PROMETHEUS_API_HOST : PORT",
"ceph dashboard set-prometheus-api-host http:... | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/7/html/dashboard_guide/management-of-alerts-on-the-ceph-dashboard |
Appendix G. Kafka Streams configuration parameters | Appendix G. Kafka Streams configuration parameters application.id Type: string Importance: high An identifier for the stream processing application. Must be unique within the Kafka cluster. It is used as 1) the default client-id prefix, 2) the group-id for membership management, 3) the changelog topic prefix. bootstrap... | null | https://docs.redhat.com/en/documentation/red_hat_amq/2021.q3/html/using_amq_streams_on_rhel/kafka-streams-configuration-parameters-str |
Chapter 36. Setting the priority for a process with the chrt utility | Chapter 36. Setting the priority for a process with the chrt utility You can set the priority for a process using the chrt utility. Prerequisites You have administrator privileges. 36.1. Setting the process priority using the chrt utility The chrt utility checks and adjusts scheduler policies and priorities. It can sta... | [
"chrt -f -p 50 1000",
"chrt -r -p 50 /bin/my-app",
"chrt -d --sched-runtime 5000000 --sched-deadline 10000000 --sched-period 16666666 0 video_processing_tool"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_for_real_time/9/html/optimizing_rhel_9_for_real_time_for_low_latency_operation/assembly_setting-the-priority-for-a-process-with-the-chrt-utility_optimizing-RHEL9-for-real-time-for-low-latency-operation |
Network Observability | Network Observability OpenShift Container Platform 4.17 Configuring and using the Network Observability Operator in OpenShift Container Platform Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/network_observability/index |
3.8. Considerations for NetworkManager | 3.8. Considerations for NetworkManager The use of NetworkManager is not supported on cluster nodes. If you have installed NetworkManager on your cluster nodes, you should either remove it or disable it. Note The cman service will not start if NetworkManager is either running or has been configured to run with the chkco... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/cluster_administration/s1-networkmanager-ca |
Chapter 8. Important links | Chapter 8. Important links Red Hat AMQ 7 Supported Configurations Red Hat AMQ 7 Component Details Revised on 2021-12-14 20:09:39 UTC | null | https://docs.redhat.com/en/documentation/red_hat_amq/2021.q3/html/release_notes_for_amq_streams_1.8_on_rhel/important-links-str |
Chapter 20. Workload partitioning | Chapter 20. Workload partitioning In resource-constrained environments, you can use workload partitioning to isolate OpenShift Container Platform services, cluster management workloads, and infrastructure pods to run on a reserved set of CPUs. The minimum number of reserved CPUs required for the cluster management is f... | [
"apiVersion: v1 baseDomain: devcluster.openshift.com cpuPartitioningMode: AllNodes 1 compute: - architecture: amd64 hyperthreading: Enabled name: worker platform: {} replicas: 3 controlPlane: architecture: amd64 hyperthreading: Enabled name: master platform: {} replicas: 3",
"apiVersion: performance.openshift.io/... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.14/html/scalability_and_performance/enabling-workload-partitioning |
23.16. Timer Element Attributes | 23.16. Timer Element Attributes The name element contains the name of the time source to be used. It can have any of the following values: Table 23.12. Name attribute values Value Description pit Programmable Interval Timer - a timer with periodic interrupts. When using this attribute, the tickpolicy delay becomes the ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-manipulating_the_domain_xml-timer_element_attributes |
Data Grid Security Guide | Data Grid Security Guide Red Hat Data Grid 8.4 Enable and configure Data Grid security Red Hat Customer Content Services | null | https://docs.redhat.com/en/documentation/red_hat_data_grid/8.4/html/data_grid_security_guide/index |
Chapter 6. Connecting clients to the router network | Chapter 6. Connecting clients to the router network After creating a router network, you can connect clients (messaging applications) to it so that they can begin sending and receiving messages. By default, the Red Hat Integration - AMQ Interconnect Operator creates a Service for the router deployment and configures th... | [
"oc edit -f router-mesh.yaml",
"apiVersion: interconnectedcloud.github.io/v1alpha1 kind: Interconnect metadata: name: router-mesh spec: listeners: - port: 5672 - authenticatePeer: true expose: true http: true port: 8080 - port: 5671 sslProfile: default expose: true",
"< scheme >://[< username >@]< host >[:< por... | https://docs.redhat.com/en/documentation/red_hat_amq/2021.q1/html/deploying_amq_interconnect_on_openshift/connecting-clients-router-network-router-ocp |
11.10. Additional Resources | 11.10. Additional Resources Installed Documentation udev(7) man page - Describes the Linux dynamic device management daemon, udevd . systemd(1) man page - Describes systemd system and service manager. biosdevname(1) man page - Describes the utility for obtaining the BIOS-given name of a device. Online Documentation The... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/networking_guide/sec-consistent_network_device_naming-additional_resources |
8.4. Installing in the Graphical User Interface | 8.4. Installing in the Graphical User Interface The graphical installation interface is the preferred method of manually installing Red Hat Enterprise Linux. It allows you full control over all available settings, including custom partitioning and advanced storage configuration, and it is also localized to many languag... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/installation_guide/sect-installation-graphical-mode-x86 |
Chapter 5. Insights client data obfuscation | Chapter 5. Insights client data obfuscation Red Hat Insights has optional controls for excluding the IP address or hostname from the data file transmitted to Red Hat and to obfuscate the values within the user interface. You can also set a custom display name for the identification of obfuscated hosts. 5.1. Obfuscation... | [
"Obfuscate IP addresses #obfuscate=False",
"obfuscate=True",
"192.168.0.24",
"10.230.230.1",
"#obfuscate_hostname=False",
"obfuscate_hostname=True",
"display_name=example-display-name",
"insights-client --display-name ITC-4",
"RTP.data.center.01",
"90f4a9365ce0.example.com"
] | https://docs.redhat.com/en/documentation/red_hat_insights/1-latest/html/client_configuration_guide_for_red_hat_insights/assembly-client-data-obfuscation |
Chapter 9. Configuring alert notifications | Chapter 9. Configuring alert notifications In OpenShift Container Platform, an alert is fired when the conditions defined in an alerting rule are true. An alert provides a notification that a set of circumstances are apparent within a cluster. Firing alerts can be viewed in the Alerting UI in the OpenShift Container Pl... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/post-installation_configuration/configuring-alert-notifications |
Chapter 4. KafkaSpec schema reference | Chapter 4. KafkaSpec schema reference Used in: Kafka Property Property type Description kafka KafkaClusterSpec Configuration of the Kafka cluster. zookeeper ZookeeperClusterSpec Configuration of the ZooKeeper cluster. This section is required when running a ZooKeeper-based Apache Kafka cluster. entityOperator EntityOpe... | null | https://docs.redhat.com/en/documentation/red_hat_streams_for_apache_kafka/2.7/html/streams_for_apache_kafka_api_reference/type-KafkaSpec-reference |
Chapter 19. Obtaining an IdM certificate for a service using certmonger | Chapter 19. Obtaining an IdM certificate for a service using certmonger 19.1. Certmonger overview When Identity Management (IdM) is installed with an integrated IdM Certificate Authority (CA), it uses the certmonger service to track and renew system and service certificates. When the certificate is reaching its expirat... | [
"ipa-getcert request -K HTTP/my_company.idm.example.com -k /etc/pki/tls/private/httpd.key -f /etc/pki/tls/certs/httpd.pem -g 2048 -D my_company.idm.example.com -C \"systemctl restart httpd\" New signing request \"20190604065735\" added.",
"ipa-getcert list -f /etc/pki/tls/certs/httpd.pem Number of certificates an... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_certificates_in_idm/using-certmonger_managing-certificates-in-idm |
Chapter 4. Important links | Chapter 4. Important links Red Hat AMQ 7 Supported Configurations Red Hat AMQ 7 Component Details AMQ Clients 2.7 Release Notes AMQ Clients 2.6 Release Notes AMQ Clients 2.5 Release Notes AMQ Clients 2.4 Release Notes AMQ Clients 2.3 Release Notes AMQ Clients 2.2 Release Notes AMQ Clients 2.1 Release Notes AMQ Clients ... | null | https://docs.redhat.com/en/documentation/red_hat_amq/2020.q4/html/amq_clients_2.8_release_notes/important_links |
16.3. Using the Same Service Principal for Multiple Services | 16.3. Using the Same Service Principal for Multiple Services Within a cluster, the same service principal can be used for multiple services, spread across different machines. Retrieve a service principal using the ipa-getkeytab command. Either direct multiple servers or services to use the same file, or copy the file t... | [
"ipa-getkeytab -s kdc.example.com -p HTTP/server.example.com -k /etc/httpd/conf/krb5.keytab -e aes256-cts"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/linux_domain_identity_authentication_and_policy_guide/using_the_same_service_principal_for_multiple_services |
2.3. Monitoring System Capacity | 2.3. Monitoring System Capacity Monitoring system capacity is done as part of an ongoing capacity planning program. Capacity planning uses long-term resource monitoring to determine rates of change in the utilization of system resources. Once these rates of change are known, it becomes possible to conduct more accurate... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/introduction_to_system_administration/s1-resource-capacity |
Chapter 9. Installing on IBM Cloud VPC | Chapter 9. Installing on IBM Cloud VPC 9.1. Preparing to install on IBM Cloud VPC The installation workflows documented in this section are for IBM Cloud VPC infrastructure environments. IBM Cloud Classic is not supported at this time. For more information on the difference between Classic and VPC infrastructures, see ... | [
"ibmcloud plugin install cis",
"ibmcloud cis instance-create <instance_name> standard 1",
"ibmcloud cis instance-set <instance_name> 1",
"ibmcloud cis domain-add <domain_name> 1",
"RELEASE_IMAGE=USD(./openshift-install version | awk '/release image/ {print USD3}')",
"CCO_IMAGE=USD(oc adm release info --im... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.11/html/installing/installing-on-ibm-cloud-vpc |
Chapter 11. Troubleshooting CephFS PVC creation in external mode | Chapter 11. Troubleshooting CephFS PVC creation in external mode If you have updated the Red Hat Ceph Storage cluster from a version lower than 4.1.1 to the latest release and is not a freshly deployed cluster, you must manually set the application type for the CephFS pool on the Red Hat Ceph Storage cluster to enable ... | [
"oc get pvc -n <namespace>",
"NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE ngx-fs-pxknkcix20-pod Pending ocs-external-storagecluster-cephfs 28h [...]",
"oc describe pvc ngx-fs-pxknkcix20-pod -n nginx-file",
"Name: ngx-fs-pxknkcix20-pod Namespace: nginx-file StorageClass: ocs-external-storageclust... | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.18/html/troubleshooting_openshift_data_foundation/troubleshooting-cephfs-pvc-creation-in-external-mode_rhodf |
Registry | Registry OpenShift Container Platform 4.17 Configuring registries for OpenShift Container Platform Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/registry/index |
Chapter 38. Cross-instrumentation of SystemTap | Chapter 38. Cross-instrumentation of SystemTap Cross-instrumentation of SystemTap is creating SystemTap instrumentation modules from a SystemTap script on one system to be used on another system that does not have SystemTap fully deployed. 38.1. SystemTap cross-instrumentation When you run a SystemTap script, a kernel ... | [
"yum install systemtap-runtime",
"uname -r",
"stap --remote target_system script",
"stap -r kernel_version script -m module_name -p 4",
"staprun module_name .ko"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/monitoring_and_managing_system_status_and_performance/cross-instrumentation-of-systemtap_monitoring-and-managing-system-status-and-performance |
Chapter 5. Topics | Chapter 5. Topics Messages in Kafka are always sent to or received from a topic. This chapter describes how to configure and manage Kafka topics. 5.1. Partitions and replicas Messages in Kafka are always sent to or received from a topic. A topic is always split into one or more partitions. Partitions act as shards. Tha... | [
"auto.create.topics.enable=false",
"delete.topic.enable=false",
"bin/kafka-topics.sh --bootstrap-server <BrokerAddress> --create --topic <TopicName> --partitions <NumberOfPartitions> --replication-factor <ReplicationFactor> --config <Option1> = <Value1> --config <Option2> = <Value2>",
"bin/kafka-topics.sh --b... | https://docs.redhat.com/en/documentation/red_hat_streams_for_apache_kafka/2.1/html/using_amq_streams_on_rhel/topics-str |
Chapter 20. API reference | Chapter 20. API reference 20.1. 5.6 Logging API reference 20.1.1. Logging 5.6 API reference 20.1.1.1. ClusterLogForwarder ClusterLogForwarder is an API to configure forwarding logs. You configure forwarding by specifying a list of pipelines , which forward from a set of named inputs to a set of named outputs. There are... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.14/html/logging/api-reference |
Chapter 1. Introduction to OpenShift Data Foundation | Chapter 1. Introduction to OpenShift Data Foundation Red Hat OpenShift Data Foundation is a highly integrated collection of cloud storage and data services for Red Hat OpenShift Container Platform. It is available as part of the Red Hat OpenShift Container Platform Service Catalog, packaged as an operator to facilitate... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.13/html/planning_your_deployment/introduction-to-openshift-data-foundation-4_rhodf |
Chapter 5. Maintaining Referential Integrity | Chapter 5. Maintaining Referential Integrity Referential Integrity is a database mechanism that ensures relationships between related entries are maintained. In the Directory Server, the Referential Integrity can be used to ensure that an update to one entry in the directory is correctly reflected in any other entries ... | [
"nsIndexType: pres nsIndexType: eq nsIndexType: sub"
] | https://docs.redhat.com/en/documentation/red_hat_directory_server/11/html/administration_guide/Maintaining_Referential_Integrity |
Chapter 10. Configuring kube-rbac-proxy for Serving | Chapter 10. Configuring kube-rbac-proxy for Serving The kube-rbac-proxy component provides internal authentication and authorization capabilities for Knative Serving. 10.1. Configuring kube-rbac-proxy resources for Serving You can globally override resource allocation for the kube-rbac-proxy container by using the Open... | [
"apiVersion: operator.knative.dev/v1beta1 kind: KnativeServing metadata: name: knative-serving namespace: knative-serving spec: config: deployment: \"kube-rbac-proxy-cpu-request\": \"10m\" 1 \"kube-rbac-proxy-memory-request\": \"20Mi\" 2 \"kube-rbac-proxy-cpu-limit\": \"100m\" 3 \"kube-rbac-proxy-memory-limit\": \"... | https://docs.redhat.com/en/documentation/red_hat_openshift_serverless/1.33/html/serving/kube-rbac-proxy-serving |
2.4.2. Vulnerable Client Applications | 2.4.2. Vulnerable Client Applications Although an administrator may have a fully secure and patched server, that does not mean remote users are secure when accessing it. For instance, if the server offers Telnet or FTP services over a public network, an attacker can capture the plain text usernames and passwords as the... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/security_guide/s2-risk-wspc-apps |
Chapter 10. Deleting a ROSA cluster | Chapter 10. Deleting a ROSA cluster This document provides steps to delete a Red Hat OpenShift Service on AWS (ROSA) cluster that uses the AWS Security Token Service (STS). After deleting your cluster, you can also delete the AWS Identity and Access Management (IAM) resources that are used by the cluster. 10.1. Prerequ... | [
"rosa describe cluster --cluster=<cluster_name> 1",
"Name: mycluster ID: 1s3v4x39lhs8sm49m90mi0822o34544a 1 Operator IAM Roles: 2 - arn:aws:iam::<aws_account_id>:role/mycluster-x4q9-openshift-machine-api-aws-cloud-credentials - arn:aws:iam::<aws_account_id>:role/mycluster-x4q9-openshift-cloud-credential-operator-... | https://docs.redhat.com/en/documentation/red_hat_openshift_service_on_aws/4/html/install_rosa_classic_clusters/rosa-sts-deleting-cluster |
Chapter 10. Pre-installation validation | Chapter 10. Pre-installation validation 10.1. Definition of pre-installation validations The Assisted Installer aims to make cluster installation as simple, efficient, and error-free as possible. The Assisted Installer performs validation checks on the configuration and the gathered telemetry before starting an install... | [
"source refresh-token",
"curl --silent --header \"Authorization: Bearer USDAPI_TOKEN\" https://api.openshift.com/api/assisted-install/v2/clusters/USDCLUSTER_ID/hosts | jq -r .[].validations_info | jq 'map(.[])'",
"curl --silent --header \"Authorization: Bearer USDAPI_TOKEN\" https://api.openshift.com/api/assist... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/assisted_installer_for_openshift_container_platform/assembly_pre-installation-validation |
function::ansi_reset_color | function::ansi_reset_color Name function::ansi_reset_color - Resets Select Graphic Rendition mode. Synopsis Arguments None General Syntax ansi_reset_color Description Sends ansi code to reset foreground, background and color attribute to default values. | [
"function ansi_reset_color()"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/systemtap_tapset_reference/api-ansi-reset-color |
Chapter 1. Getting ready to install MicroShift | Chapter 1. Getting ready to install MicroShift Plan for your Red Hat Device Edge by planning your Red Hat Enterprise Linux (RHEL) installation type and your MicroShift configuration. 1.1. System requirements for installing MicroShift The following conditions must be met prior to installing MicroShift: A compatible vers... | null | https://docs.redhat.com/en/documentation/red_hat_build_of_microshift/4.18/html/getting_ready_to_install_microshift/microshift-install-get-ready |
Chapter 8. Windows node upgrades | Chapter 8. Windows node upgrades You can ensure your Windows nodes have the latest updates by upgrading the Windows Machine Config Operator (WMCO). 8.1. Windows Machine Config Operator upgrades When a new version of the Windows Machine Config Operator (WMCO) is released that is compatible with the current cluster versi... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/windows_container_support_for_openshift/windows-node-upgrades |
function::symline | function::symline Name function::symline - Return the line number of an address. Synopsis Arguments addr The address to translate. Description Returns the (approximate) line number of the given address, if known. If the line number cannot be found, the hex string representation of the address will be returned. | [
"symline:string(addr:long)"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/api-symline |
2.3. Boot Loader Options | 2.3. Boot Loader Options Figure 2.3. Boot Loader Options GRUB is the default boot loader for Red Hat Enterprise Linux. If you do not want to install a boot loader, select Do not install a boot loader . If you choose not to install a boot loader, make sure you create a boot diskette or have another way to boot your syst... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/system_administration_guide/RHKSTOOL-Boot_Loader_Options |
5.2.25. /proc/pci | 5.2.25. /proc/pci This file contains a full listing of every PCI device on the system. Depending on the number of PCI devices, /proc/pci can be rather long. A sampling of this file from a basic system looks similar to the following: This output shows a list of all PCI devices, sorted in the order of bus, device, and fu... | [
"Bus 0, device 0, function 0: Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 3). Master Capable. Latency=64. Prefetchable 32 bit memory at 0xe4000000 [0xe7ffffff]. Bus 0, device 1, function 0: PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 3). Master Capable. Latency=64. ... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/reference_guide/s2-proc-pci |
Chapter 11. Using the Service Interconnect Console | Chapter 11. Using the Service Interconnect Console The Service Interconnect Console provides data and visualizations of the traffic flow between Skupper sites. 11.1. Enabling the Service Interconnect Console By default, when you create a Skupper site, a Service Interconnect Console is not available. When enabled, the S... | [
"skupper init --enable-console --enable-flow-collector",
"skupper status Skupper is enabled for namespace \"west\" in interior mode. It is not connected to any other sites. It has no exposed services. The site console url is: https://skupper-west.apps-crc.testing",
"kubectl get secret skupper-console-users -o j... | https://docs.redhat.com/en/documentation/red_hat_service_interconnect/1.8/html/using_service_interconnect/skupper-console |
7.71. hal-info | 7.71. hal-info 7.71.1. RHBA-2015:1268 - hal-info bug fix update An updated hal-info package that fixes one bug and adds one enhancement is now available for Red Hat Enterprise Linux 6. The hal-info package contains various device information files (also known as .fdi files) for the hal package. Bug Fix BZ# 841419 Previ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.7_technical_notes/package-hal-info |
Data Grid downloads | Data Grid downloads Access the Data Grid Software Downloads on the Red Hat customer portal. Note You must have a Red Hat account to access and download Data Grid software. | null | https://docs.redhat.com/en/documentation/red_hat_data_grid/8.4/html/hot_rod_node.js_client_guide/rhdg-downloads_datagrid |
Chapter 17. Deploying distributed units manually on single-node OpenShift | Chapter 17. Deploying distributed units manually on single-node OpenShift The procedures in this topic tell you how to manually deploy clusters on a small number of single nodes as a distributed unit (DU) during installation. The procedures do not describe how to install single-node OpenShift. This can be accomplished ... | [
"apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 02-master-workload-partitioning spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,W2NyaW8ucnVudGltZS53b3JrbG9hZHM... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/scalability_and_performance/sno-du-deploying-distributed-units-manually-on-single-node-openshift |
Chapter 3. Migrating from Jenkins to OpenShift Pipelines or Tekton | Chapter 3. Migrating from Jenkins to OpenShift Pipelines or Tekton You can migrate your CI/CD workflows from Jenkins to Red Hat OpenShift Pipelines , a cloud-native CI/CD experience based on the Tekton project. 3.1. Comparison of Jenkins and OpenShift Pipelines concepts You can review and compare the following equivale... | [
"pipeline { agent any stages { stage('Build') { steps { sh 'make' } } stage('Test'){ steps { sh 'make check' junit 'reports/**/*.xml' } } stage('Deploy') { steps { sh 'make publish' } } } }",
"apiVersion: tekton.dev/v1beta1 kind: Task metadata: name: myproject-build spec: workspaces: - name: source steps: - image... | https://docs.redhat.com/en/documentation/red_hat_openshift_service_on_aws/4/html/jenkins/migrating-from-jenkins-to-openshift-pipelines_images-other-jenkins-agent |
Chapter 3. Configuring Red Hat Quay before deployment | Chapter 3. Configuring Red Hat Quay before deployment The Red Hat Quay Operator can manage all of the Red Hat Quay components when deployed on OpenShift Container Platform. This is the default configuration, however, you can manage one or more components externally when you want more control over the set up. Use the fo... | [
"touch config.yaml",
"AUTHENTICATION_TYPE: Database BUILDLOGS_REDIS: host: <quay-server.example.com> password: <strongpassword> port: 6379 ssl: false DATABASE_SECRET_KEY: <0ce4f796-c295-415b-bf9d-b315114704b8> DB_URI: <postgresql://quayuser:quaypass@quay-server.example.com:5432/quay> DEFAULT_TAG_EXPIRATION: 2w DI... | https://docs.redhat.com/en/documentation/red_hat_quay/3.13/html/deploying_the_red_hat_quay_operator_on_openshift_container_platform/operator-preconfigure |
Chapter 2. Installing the Operator | Chapter 2. Installing the Operator The Red Hat Service Interconnect Operator creates and manages sites in OpenShift. Note The Red Hat Service Interconnect Operator is supported only on OpenShift version 4 as distinct from OpenShift version 3. Installing an Operator requires administrator-level privileges for your clust... | [
"apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: skupper-operator namespace: openshift-operators spec: channel: stable-1 installPlanApproval: Automatic name: skupper-operator source: redhat-operators sourceNamespace: openshift-marketplace startingCSV: skupper-operator.v1.8.1-rh-3",
"k... | https://docs.redhat.com/en/documentation/red_hat_service_interconnect/1.8/html/installation/installing-operator |
Chapter 359. uniVocity CSV DataFormat | Chapter 359. uniVocity CSV DataFormat Available as of Camel version 2.15 This Data Format uses uniVocity-parsers for reading and writing 3 kinds of tabular data text files: CSV (Comma Separated Values), where the values are separated by a symbol (usually a comma) fixed-width, where the values have known sizes TSV (Tabu... | [
"<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-univocity-parsers</artifactId> <version>x.x.x</version> </dependency>",
"<route> <from uri=\"direct:input\"/> <marshal> <univocity-csv/> </marshal> <to uri=\"mock:result\"/> </route>",
"<route> <from uri=\"direct:input\"/> <marshal> <univocity-... | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/apache_camel_component_reference/univocity-csv-dataformat |
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/17.1/html/managing_secrets_with_the_key_manager_service/making-open-source-more-inclusive |
Chapter 3. Developing and running Camel K integrations | Chapter 3. Developing and running Camel K integrations This chapter explains how to set up your development environment and how to develop and deploy simple Camel K integrations written in Java and YAML. It also shows how to use the kamel command line to manage Camel K integrations at runtime. For example, this include... | [
"sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc sudo sh -c 'echo -e \"[code]\\nname=Visual Studio Code\\nbaseurl=https://packages.microsoft.com/yumrepos/vscode\\nenabled=1\\ngpgcheck=1\\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc\" > /etc/yum.repos.d/vscode.repo'",
"yum check-up... | https://docs.redhat.com/en/documentation/red_hat_build_of_apache_camel_k/1.10.5/html/getting_started_with_camel_k/developing-and-running-camel-k-integrations |
Chapter 6. Upgrading Fuse applications on JBoss EAP standalone | Chapter 6. Upgrading Fuse applications on JBoss EAP standalone To upgrade your Fuse applications on JBoss EAP: You should consider Apache Camel updates as described in Section 6.1, "Camel migration considerations" . You must update your Fuse project's Maven dependencies to ensure that you are using the correct version ... | [
"import com.mongodb.client.MongoClient;",
"return MongoClients.create(\"mongodb://admin:password@192.168.99.102:32553\");",
"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?> <project ...> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <!-- configure the versions you ... | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/migration_guide/upgrading-fuse-applications-on-jboss-eap-standalone |
Chapter 12. Building container images | Chapter 12. Building container images Building container images involves creating a blueprint for a containerized application. Blueprints rely on base images from other public repositories that define how the application should be installed and configured. Note Because blueprints rely on images from other public reposi... | [
"example ├── .git ├── Dockerfile ├── file └── subdir └── Dockerfile",
"{ \"commit\": \"1c002dd\", // required \"ref\": \"refs/heads/master\", // required \"default_branch\": \"master\", // required \"commit_info\": { // optional \"url\": \"gitsoftware.com/repository/commits/1234567\", // required \"message\": \"i... | https://docs.redhat.com/en/documentation/red_hat_quay/3/html/about_quay_io/building-dockerfiles |
A.7. Troubleshooting Replication | A.7. Troubleshooting Replication Test replication on at least two servers (see Section 4.6, "Testing the New Replica" ). If changes made on one IdM server are not replicated to the other server: Make sure you meet the conditions in Section 2.1.5, "Host Name and DNS Configuration" . Make sure that both servers can resol... | [
"dig +short server2.example.com A dig +short server2.example.com AAAA dig +short -x server2_IPv4_or_IPv6_address",
"dig +short server1.example.com A dig +short server1.example.com AAAA dig +short -x server1_IPv4_or_IPv6_address",
"kinit -kt /etc/dirsrv/ds.keytab ldap/ server1.example.com klist ldapsearch -Y GSS... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/linux_domain_identity_authentication_and_policy_guide/trouble-gen-replication |
6.2. Creating and managing nftables tables, chains, and rules | 6.2. Creating and managing nftables tables, chains, and rules This section explains how to display the nftables rule set, and how to manage it. 6.2.1. Displaying the nftables rule set The rule set of nftables contains tables, chains, and rules. This section explains how to display this rule set. To display all the rule... | [
"nft list ruleset table inet example_table { chain example_chain { type filter hook input priority filter; policy accept; tcp dport http accept tcp dport ssh accept } }",
"nft add table inet example_table",
"nft list tables table inet example_table",
"nft add chain inet example_table example_chain '{ type fil... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/security_guide/sec-creating_and_managing_nftables_tables_chains_and_rules |
Chapter 18. Topology Aware Lifecycle Manager for cluster updates | Chapter 18. Topology Aware Lifecycle Manager for cluster updates You can use the Topology Aware Lifecycle Manager (TALM) to manage the software lifecycle of multiple single-node OpenShift clusters. TALM uses Red Hat Advanced Cluster Management (RHACM) policies to perform changes on the target clusters. Important Topolo... | [
"apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: openshift-topology-aware-lifecycle-manager-subscription namespace: openshift-operators spec: channel: \"stable\" name: topology-aware-lifecycle-manager source: redhat-operators sourceNamespace: openshift-marketplace",
"oc create -f talm... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.11/html/scalability_and_performance/cnf-talm-for-cluster-updates |
Chapter 1. Overview of Insights for Red Hat Enterprise Linux advisor service reporting | Chapter 1. Overview of Insights for Red Hat Enterprise Linux advisor service reporting The advisor service enables the following ways to share the status of your Red Hat Enterprise Linux (RHEL) infrastructure: Export and download a report (in CSV, JSON, or YAML file format) that shows recommendations for your impacted ... | null | https://docs.redhat.com/en/documentation/red_hat_insights/1-latest/html/generating_advisor_service_reports_with_fedramp/insights-report-overview |
Chapter 3. Enabling NVIDIA GPUs | Chapter 3. Enabling NVIDIA GPUs Before you can use NVIDIA GPUs in OpenShift AI, you must install the NVIDIA GPU Operator. Prerequisites You have logged in to your OpenShift cluster. You have the cluster-admin role in your OpenShift cluster. You have installed an NVIDIA GPU and confirmed that it is detected in your envi... | [
"Expected output when the GPU is detected properly describe node <node name> Capacity: cpu: 4 ephemeral-storage: 313981932Ki hugepages-1Gi: 0 hugepages-2Mi: 0 memory: 16076568Ki nvidia.com/gpu: 1 pods: 250 Allocatable: cpu: 3920m ephemeral-storage: 288292006229 hugepages-1Gi: 0 hugepages-2Mi: 0 memory: 12828440Ki n... | https://docs.redhat.com/en/documentation/red_hat_openshift_ai_self-managed/2.18/html/working_with_accelerators/enabling-nvidia-gpus_accelerators |
8.215. sg3_utils | 8.215. sg3_utils 8.215.1. RHBA-2014:1601 - sg3_utils bug fix update Updated sg3_utils packages that fix one bug are now available for Red Hat Enterprise Linux 6. The sg3_utils packages contain a collection of tools for SCSI devices that use the Linux SCSI generic (sg) interface. This collection includes utilities for d... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.6_technical_notes/sg3_utils |
Chapter 2. Onboarding certification partners | Chapter 2. Onboarding certification partners Use the Red Hat Customer Portal to create a new account if you are a new partner, or use your existing Red Hat account if you are a current partner to onboard with Red Hat for certifying your products. 2.1. Onboarding existing certification partners As an existing partner yo... | null | https://docs.redhat.com/en/documentation/red_hat_software_certification/2025/html/red_hat_openstack_certification_workflow_guide/onboarding-certification-partners_rhosp-wf-cert-introduction |
Providing feedback on Red Hat build of OpenJDK documentation | Providing feedback on Red Hat build of OpenJDK documentation To report an error or to improve our documentation, log in to your Red Hat Jira account and submit an issue. If you do not have a Red Hat Jira account, then you will be prompted to create an account. Procedure Click the following link to create a ticket . Ent... | null | https://docs.redhat.com/en/documentation/red_hat_build_of_openjdk/8/html/release_notes_for_red_hat_build_of_openjdk_8.0.432/providing-direct-documentation-feedback_openjdk |
2.6.2. TCP Wrappers Configuration Files | 2.6.2. TCP Wrappers Configuration Files To determine if a client is allowed to connect to a service, TCP Wrappers reference the following two files, which are commonly referred to as hosts access files: /etc/hosts.allow /etc/hosts.deny When a TCP-wrapped service receives a client request, it performs the following step... | [
"warning: /etc/hosts.allow, line 20: missing newline or line too long",
"vsftpd : .example.com",
"sshd : .example.com : spawn /bin/echo `/bin/date` access denied>>/var/log/sshd.log : deny",
"ALL : .example.com",
"ALL : 192.168.",
"ALL : 192.168.0.0/255.255.254.0",
"ALL : [3ffe:505:2:1::]/64",
"ALL : *... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-tcp_wrappers_and_xinetd-tcp_wrappers_configuration_files |
Chapter 1. Ceph RESTful API | Chapter 1. Ceph RESTful API As a storage administrator, you can use the Ceph RESTful API, or simply the Ceph API, provided by the Red Hat Ceph Storage Dashboard to interact with the Red Hat Ceph Storage cluster. You can display information about the Ceph Monitors and OSDs, along with their respective configuration opti... | [
"Accept: application/vnd.ceph.api.v MAJOR . MINOR +json",
"Accept: application/vnd.ceph.api.v1.0+json",
"curl -X POST \"https://example.com:8443/api/auth\" -H \"Accept: application/vnd.ceph.api.v1.0+json\" -H \"Content-Type: application/json\" -d '{\"username\": user1, \"password\": password1}'",
"curl -H \"A... | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/6/html/developer_guide/ceph-restful-api |
probe::nfs.proc.lookup | probe::nfs.proc.lookup Name probe::nfs.proc.lookup - NFS client opens/searches a file on server Synopsis nfs.proc.lookup Values bitmask1 V4 bitmask representing the set of attributes supported on this filesystem bitmask0 V4 bitmask representing the set of attributes supported on this filesystem filename the name of fil... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/api-nfs-proc-lookup |
Chapter 7. Monitoring your brokers | Chapter 7. Monitoring your brokers 7.1. Viewing brokers in Fuse Console You can configure an Operator-based broker deployment to use Fuse Console for OpenShift instead of the AMQ Management Console. When you have configured your broker deployment appropriately, Fuse Console discovers the brokers and displays them on a ... | [
"apiVersion: broker.amq.io/v1beta1 kind: ActiveMQArtemis metadata: name: ex-aao application: ex-aao-app spec: deploymentPlan: size: 4 image: registry.redhat.io/amq7/amq-broker-rhel8:7.10",
"apiVersion: broker.amq.io/v1beta1 kind: ActiveMQArtemis metadata: name: ex-aao application: ex-aao-app spec: deploymentPlan:... | https://docs.redhat.com/en/documentation/red_hat_amq_broker/7.10/html/deploying_amq_broker_on_openshift/assembly_br-broker-monitoring_broker-ocp |
Chapter 13. The Hot Rod Interface | Chapter 13. The Hot Rod Interface 13.1. About Hot Rod Hot Rod is a binary TCP client-server protocol used in Red Hat JBoss Data Grid. It was created to overcome deficiencies in other client/server protocols, such as Memcached. Hot Rod will failover on a server cluster that undergoes a topology change. Hot Rod achieves ... | null | https://docs.redhat.com/en/documentation/red_hat_data_grid/6.6/html/administration_and_configuration_guide/chap-the_hot_rod_interface |
Red Hat Data Grid | Red Hat Data Grid Data Grid is a high-performance, distributed in-memory data store. Schemaless data structure Flexibility to store different objects as key-value pairs. Grid-based data storage Designed to distribute and replicate data across clusters. Elastic scaling Dynamically adjust the number of nodes to meet dema... | null | https://docs.redhat.com/en/documentation/red_hat_data_grid/8.4/html/data_grid_operator_guide/red-hat-data-grid |
8.9. akonadi | 8.9. akonadi 8.9.1. RHBA-2014:0539 - akonadi bug fix update Updated akonadi packages that fix one bug are now available for Red Hat Enterprise Linux 6. Akonadi is a storage service for personal information management (PIM) data and metadata. The service provides unique desktop-wide object identification and retrieval, ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.6_technical_notes/akonadi |
Chapter 22. Control Bus | Chapter 22. Control Bus Only producer is supported The Control Bus from the EIP patterns allows for the integration system to be monitored and managed from within the framework. Use a Control Bus to manage an enterprise integration system. The Control Bus uses the same messaging mechanism used by the application data, ... | [
"controlbus:command[?options]",
"<dependency> <groupId>org.apache.camel.springboot</groupId> <artifactId>camel-controlbus-starter</artifactId> </dependency>",
"controlbus:command:language",
"template.sendBody(\"controlbus:route?routeId=foo&action=start\", null);",
"String status = template.requestBody(\"con... | https://docs.redhat.com/en/documentation/red_hat_build_of_apache_camel/4.4/html/red_hat_build_of_apache_camel_for_spring_boot_reference/csb-camel-control-bus-component-starter |
Chapter 15. Socket Tapset | Chapter 15. Socket Tapset This family of probe points is used to probe socket activities. It contains the following probe points: | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/socket-dot-stp |
Chapter 7. Configuring Compute nodes for performance | Chapter 7. Configuring Compute nodes for performance You can configure the scheduling and placement of instances for optimal performance by creating customized flavors to target specialized workloads, including NFV and High Performance Computing (HPC). Use the following features to tune your instances for optimal perfo... | [
"NovaComputeCpuDedicatedSet: 1,3,5,7",
"NovaComputeCpuSharedSet: 2,6",
"NovaReservedHostMemory: 512",
"IsolCpusList: 1 2 3 5 6 7",
"(undercloud) USD openstack overcloud deploy --templates -e [your environment files] -e /home/stack/templates/<compute_environment_file>.yaml",
"(overcloud) USD openstack flav... | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/16.0/html/instances_and_images_guide/ch-compute-performance |
5.151. libhbalinux | 5.151. libhbalinux 5.151.1. RHEA-2012:0848 - libhbalinux enhancement update An updated libhbalinux package that fixes multiple bugs and adds various enhancements is now available for Red Hat Enterprise Linux 6. The libhbalinux package contains the Host Bus Adapter API (HBAAPI) vendor library which uses standard kernel ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.3_technical_notes/libhbalinux |
2.9.3. Troubleshooting GFS2 Performance with the GFS2 Lock Dump | 2.9.3. Troubleshooting GFS2 Performance with the GFS2 Lock Dump If your cluster performance is suffering because of inefficient use of GFS2 caching, you may see large and increasing I/O wait times. You can make use of GFS2's lock dump information to determine the cause of the problem. This section provides an overview ... | [
"/sys/kernel/debug/gfs2/ fsname /glocks"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/global_file_system_2/gfs2_performance_troubleshoot |
Object Gateway Guide | Object Gateway Guide Red Hat Ceph Storage 8 Deploying, configuring, and administering a Ceph Object Gateway Red Hat Ceph Storage Documentation Team | [
"ceph orch apply mon --placement=\"host1 host2 host3\"",
"service_type: mon placement: hosts: - host01 - host02 - host03",
"ceph orch apply -i mon.yml",
"ceph orch apply rgw example --placement=\"6 host1 host2 host3\"",
"service_type: rgw service_id: example placement: count: 6 hosts: - host01 - host02 - ho... | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/8/html-single/object_gateway_guide/create-an-s3-user-rgw |
10.2. SELinux and journald | 10.2. SELinux and journald In systemd , the journald daemon (also known as systemd-journal ) is the alternative for the syslog utility, which is a system service that collects and stores logging data. It creates and maintains structured and indexed journals based on logging information that is received from the kernel,... | [
"~]# journalctl _SELINUX_CONTEXT=system_u:system_r:policykit_t:s0 Oct 21 10:22:42 localhost.localdomain polkitd[647]: Started polkitd version 0.112 Oct 21 10:22:44 localhost.localdomain polkitd[647]: Loading rules from directory /etc/polkit-1/rules.d Oct 21 10:22:44 localhost.localdomain polkitd[647]: Loading rules... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/selinux_users_and_administrators_guide/sec-systemd_access_control-journald |
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