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The Cacti tool is an open-source, web-based solution for network monitoring and system graphing in IT businesses. Cacti allows users to poll services regularly to The post How to Install Cacti (Network Monitoring) Tool on RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides. View the full article

YUM, or also known as Yellowdog Updater Modified, is a package management tool developed by Yellowdog Linux. It is the default and widely used software package manager in Fedora, RHEL, CentOS Linux systems, etc. Its primary features allow you to install, upgrade, and uninstall software packages on your devices. YUM has been a reliable tool and evolved into its next-generation version, Dandified YUM(DNF). Furthermore, you can easily access YUM through the command line, making it the preferred choice of most administrators. However, many users still need to discover and want to learn various use cases of YUM. This quick guide will briefly describe YUM in Linux and demonstrate some examples of its use. How to Use YUM in Linux You can install any new software using a simple yum install command followed by your desired package name. For example, to install the r sync utility, we would use: yum install rsync Additionally, you do not need to worry about the dependencies the new packages need because YUM takes care of it all. You can use the below-given command to update any particular package: yum update package_name Please replace ‘package_name’ with the package name you want to update. For instance, let’s update the curl utility: yum update curl Similarly you can completely remove a package from your system through the following command: yum remove package_name Again replace ‘package_name’ like shown in the above section. After executing this command, enter ‘y’ to confirm the removal of your target package and its dependencies. For example, if we have to remove the curl package installed in the previous section, we will run: yum remove curl If you want to view detailed information about a package before installing it immediately, use the yum info command. For example: yum info curl It will display information about Curl’s latest version, release, size, license, and description. You can also take a brief look at the packages installed on your system by running: yum list installed In case you are unable to recall the exact name of your desired package, use the search function as follows: yum search [specific_keyword] Just replace [specific_keyword] with your target keyword. It will show all the matching package names. A Quick Summary YUM is the default package management utility in Fedora, RHEL, CentOS, and other similar Linux distributions that the Yellowdog Linux originally developed. This guide quickly explained YUM in Linux with the help of multiple examples. Here, we demonstrated how to use YUM to install, remove, and upgrade packages on your systems. View the full article

Effective April 1, 2024, AWS has extended per-second billing to Red Hat Enterprise Linux (RHEL)-based instances running on Amazon EC2. Customers will pay for RHEL-based instances that are launched in On-Demand, Reserved, and Spot form in one second increments, with a minimum of one minute. View the full article

AWS Systems Manager now supports instances running Red Hat Enterprise Linux (RHEL) versions 8.9 and 9.3. Systems Manager customers running these operating systems versions now have access to all AWS Systems Manager Node Management capabilities, including Fleet Manager, Compliance, Inventory, Hybrid Activations, Session Manager, Run Command, State Manager, Patch Manager, and Distributor. For a full list of supported operating systems and machine types for AWS Systems Manager, see the user guide. Patch Manager enables you to automatically patch instances with both security-related and other types of updates across your infrastructure for a variety of common operating systems, including Windows Server, Amazon Linux, and Red Hat Enterprise Linux (RHEL). For a full list of supported operating systems for AWS Systems Manager Patch Manager, see the Patch Manager prerequisites user guide page. View the full article

The post How to Reset Forgotten Root Password in RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides .This article will guide you through simple steps to reset forgotten root password in RHEL-based Linux distributions such as Fedora, CentOS Stream, Rocky and Alma The post How to Reset Forgotten Root Password in RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

The full form of EPEL is Extra Packages for Enterprise Linux. As the name says, it’s a package repository for enterprise Linux distributions such as RHEL, AlmaLinux, Rocky Linux, CentOS Stream, and so on. The EPEL package repositories contain packages that are available on Fedora but are not available on RHEL, CentOS Stream, and other RHEL-based Linux distributions (i.e. AlmaLinux, Rocky Linux). So, if you need to use any of the software packages that are available on Fedora Linux on RHEL, AlmaLinux, Rocky Linux, or CentOS Stream, you must enable the EPEL package repositories on your computer/server.In this article, we will show you how to install, enable, and use the EPEL repository on Red Hat Enterprise Linux (RHEL) 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9 Linux distributions. Topic of Contents: Installing the EPEL Repository on Red Hat Enterprise Linux (RHEL) 9 Installing the EPEL Repository on AlmaLinux 9 and Rocky Linux 9 Installing the EPEL Repository on CentOS Stream 9 Checking If the EPEL Package Repository Is Enabled on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Listing All EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream 8 Searching for EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Installing the Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Listing the Installed Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream Disabling the EPEL Repository on RHEL 9 Disabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 Disabling the EPEL Repository on CentOS Stream 9 Enabling the EPEL Repository on RHEL 9 Enabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 Enabling the EPEL Repository on CentOS Stream 9 Uninstalling the EPEL Repository from RHEL 9/AlmaLinux 9/Rocky Linux 9 Uninstalling the EPEL Repository from CentOS Stream 9 Conclusion Installing the EPEL Repository on Red Hat Enterprise Linux (RHEL) 9 Some of the packages of the EPEL repository depend on the packages from the official RHEL 9 CodeReady-Builder repository. So, you must enable the RHEL 9 CodeReady-Builder repository before installing/enabling the EPEL repository on RHEL 9. To enable the RHEL 9 CodeReady-Builder repository, run the following command: $ sudo subscription-manager repos --enable codeready-builder-for-rhel-9-$(uname -i)-rpms The CodeReady-Builder repository should be enabled on your RHEL 9 system. To install and enable the EPEL repository on your RHEL 9 machine, run the following command: $ sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm To confirm the installation, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your RHEL 9 system. Installing the EPEL Repository on AlmaLinux 9 and Rocky Linux 9 Some of the packages of the EPEL repository depend on the packages from the official AlmaLinux 9/Rocky Linux 9 CRB repository. So, you must enable the CRB repository before installing/enabling the EPEL repository on AlmaLinux 9/Rocky Linux 9. To enable the CRB repository on AlmaLinux 9/Rocky Linux 9, run the following command: $ sudo dnf config-manager --set-enabled crb Update the DNF package database cache with the following command: $ sudo dnf makecache To install and enable the EPEL repository on AlmaLinux 9/Rocky Linux 9, run the following command: $ sudo dnf install epel-release To confirm the installation, press “Y” and then press <Enter>. You may be asked to accept the GPG key of the AlmaLinux/Rocky Linux 9 repository. To accept the GPG key, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your AlmaLinux/Rocky Linux 9 system. Installing the EPEL Repository on CentOS Stream 9 Some of the packages of the EPEL repository depend on packages from the official CentOS Stream 9 CRB repository. So, you must enable the CRB repository before installing/enabling the EPEL repository on CentOS Stream 9. To enable the CRB repository on CentOS Stream 9, run the following command: $ sudo dnf config-manager --set-enabled crb Update the DNF package database cache with the following command: $ sudo dnf makecache To install and enable the EPEL repository on CentOS Stream 9, run the following command: $ sudo dnf install epel-release epel-next-release To confirm the installation, press “Y” and then press <Enter>. You may be asked to accept the GPG key of the CentOS Stream 9 repository. To accept the GPG key, press “Y” and then press <Enter>. The EPEL repository should be installed and enabled on your CentOS Stream 9 system. Checking If the EPEL Package Repository Is Enabled on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To check whether the EPEL package repository is enabled on RHEL 9, AlmaLinux 9, Rocky Linux 9, or CentOS Stream 9, run the following command: $ sudo dnf repolist If the EPEL repository is enabled on RHEL 9, AlmaLinux 9, and Rocky Linux 9, you should see the “epel” and “epel-cisco-openh264” repositories in the list. If the EPEL repository is enabled on CentOS Stream 9, you should see the “epel”, “epel-next”, and “epel-cisco-openh264” repositories in the list. Listing All EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To list all the EPEL repository packages on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9, run the following command: $ sudo dnf --repo epel list available To list all the EPEL repository packages starting with the “php” name (let’s say) on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9, run the following command: $ sudo dnf --repo epel list available php* In the same way, you can list all the “epel-cisco-openh264” repository packages on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9 with the following command: $ sudo dnf --repo epel-cisco-openh264 list available If you’re using the CentOS 9 Stream, you can also list all the “epel-next” repository packages with the following command: $ sudo dnf --repo epel-next list available Searching for the EPEL Repository Packages on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To search for the EPEL repository packages only on RHEL 9 and AlmaLinux/Rocky Linux 9, run the following command: $ sudo dnf --repo epel --repo epel-cisco-openh264 search composer To search for EPEL repository packages only on CentOS Stream 9, run the following command: $ sudo dnf --repo epel --repo epel-cisco-openh264 --repo epel-next search node Installing the Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream You can install the packages from the EPEL repositories on RHEL 9, AlmaLinux/Rocky Linux 9, and CentOS Stream 9 with the usual “dnf install” command. For example, to install the “nodejs-devel” from the “epel” repository along with all the dependencies, run the following command: $ sudo dnf install nodejs-devel To confirm the installation, press “Y” and then press <Enter>. The EPEL repository package and its dependencies are being downloaded and installed on your computer/server. It takes a while to complete. You may be asked to accept the GPG key of the EPEL repository. Just press “Y” and then press <Enter> to continue. Your desired EPEL repository package should be installed. Listing the Installed Packages from the EPEL Repository on RHEL/AlmaLinux/Rocky Linux/CentOS Stream To list all the installed EPEL repository packages, run the following command: $ sudo dnf list installed | grep @epel As you can see, the “nodejs-devel” package that we installed from the EPEL repository in the earlier section is displayed. Disabling the EPEL Repository on RHEL 9 To disable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the “CodeReady-Builder” repository on RHEL 9 with the following command: $ sudo subscription-manager repos --disable codeready-builder-for-rhel-9-$(uname -i)-rpms The EPEL repositories and CodeReady-Builder repository should be disabled on your RHEL 9 system. $ sudo dnf repolist Disabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 To disable the EPEL repositories (“epel” and “epel-cisco-openh264”) on AlmaLinux/Rocky Linux 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the CRB repository on AlmaLinux/Rocky Linux 9 with the following command: $ sudo dnf config-manager --set-disabled crb The EPEL repositories and CRB repository should be disabled on your AlmaLinux/Rocky Linux 9 system. $ sudo dnf repolist Disabling the EPEL Repository on CentOS Stream 9 To disable the EPEL repositories (“epel”, “epel-next”, and “epel-cisco-openh264”) on CentOS Stream 9, run the following commands: $ sudo dnf config-manager --set-disabled epel $ sudo dnf config-manager --set-disabled epel-next $ sudo dnf config-manager --set-disabled epel-cisco-openh264 Optionally, you can disable the CRB repository on CentOS Stream 9 with the following command: $ sudo dnf config-manager --set-disabled crb The EPEL repositories and CRB repository should be disabled on your CentOS Stream 9 system. $ sudo dnf repolist Enabling the EPEL Repository on RHEL 9 To re-enable the EPEL repositories on RHEL 9, enable the CodeReady-Builder repository first with the following command: $ sudo subscription-manager repos --enable codeready-builder-for-rhel-9-$(uname -i)-rpms To re-enable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CodeReady-Builder repository should be enabled on your RHEL 9 system. $ sudo dnf repolist Enabling the EPEL Repository on AlmaLinux 9/Rocky Linux 9 To re-enable the EPEL repositories on AlmaLinux/Rocky Linux 9, enable the CRB repository first with the following command: $ sudo dnf config-manager --set-enabled crb To re-enable the EPEL repositories (“epel” and “epel-cisco-openh264”) on RHEL 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CRB repository should be enabled on your AlmaLinux/Rocky Linux 9 system. $ sudo dnf repolist Enabling the EPEL Repository on CentOS Stream 9 To re-enable the EPEL repositories on CentOS Stream 9, enable the CRB repository first with the following command: $ sudo dnf config-manager --set-enabled crb To re-enable the EPEL repositories (epel, epel-next, and epel-cisco-openh264) on CentOS Stream 9, run the following commands: $ sudo dnf config-manager --set-enabled epel $ sudo dnf config-manager --set-enabled epel-next $ sudo dnf config-manager --set-enabled epel-cisco-openh264 The EPEL repositories and CRB repository should be enabled on your CentOS Stream 9 system. $ sudo dnf repolist Uninstalling the EPEL Repository from RHEL 9/AlmaLinux 9/Rocky Linux 9 To remove the EPEL repositories completely from RHEL 9 or AlmaLinux/Rocky Linux 9, run the following command: $ sudo dnf remove epel-release To confirm the uninstallation, press “Y” and then press <Enter>. The EPEL repositories should be removed from your RHEL 9 or AlmaLinux/Rocky Linux 9 system. Uninstalling the EPEL Repository from CentOS Stream 9 To remove the EPEL repositories completely from CentOS Stream 9, run the following command: $ sudo dnf remove epel-release epel-next-release To confirm the uninstallation, press “Y” and then press <Enter>. The EPEL repositories should be removed from your CentOS Stream 9 system. Conclusion In this article, we showed you how to install and enable the EPEL repositories on RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. We also showed you how to check if the EPEL repositories are enabled, list the EPEL repository packages, search for EPEL repository packages, and install the EPEL repository packages on RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. We showed you how to list the installed packages from the EPEL repositories as well. Finally, we showed you how to disable the EPEL repositories, re-enable the EPEL repositories, and uninstall the EPEL repositories completely from RHEL 9, AlmaLinux 9, Rocky Linux 9, and CentOS Stream 9. View the full article

The post How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on RHEL first appeared on Tecmint: Linux Howtos, Tutorials & Guides .If you are a person who is, or has been in the past, in charge of inspecting and analyzing system logs in Linux, you know The post How To Install Elasticsearch, Logstash, and Kibana (ELK Stack) on RHEL first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

Oracle has again proved why it’s a leading player in the database market by releasing its latest version, Oracle Database 23c (code-named “App Simple”) ... View the full article

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The post How to Install VLC Media Player in RHEL-based Distributions first appeared on Tecmint: Linux Howtos, Tutorials & Guides .VLC (VideoLAN Client) is an open-source, free, simple, fast, and highly powerful cross-platform player and framework designed for playing a wide range of multimedia files, The post How to Install VLC Media Player in RHEL-based Distributions first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

Testing ChatGPT Ansible playbooks, building RHEL homelabs, and more tips for sysadmins Image Check out Enable Sysadmin’s top 10 articles from February 2023. Posted: March 3, 2023 | %t min read| by Vicki Walker (Editorial Team, Red Hat) Topics: Ansible Containers Read the full article on redhat.com Read More at Enable Sysadmin The post Testing ChatGPT Ansible playbooks, building RHEL homelabs, and more tips for sysadmins appeared first on Linux.com. View the full article

The post How to Install Packages on RHEL 8 Locally Using DVD ISO first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Often, when we want to have a local repository for our RHEL 8 system to install packages without internet access for extra safety and using RHEL 8 ISO is the easiest way to do The post How to Install Packages on RHEL 8 Locally Using DVD ISO first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

Linux has always been known for its flexibility and installing packages from ISO is one of them. There are many use cases when a user wants to use ISO/DVD for downloading packages... View the full article

Short for Secure Shell, SSH is a secure network protocol that encrypts traffic between two endpoints. It allows users to securely connect and/or transfer files over a network. SSH is mostly used by network View the full article

Check out Enable Sysadmin’s top 10 articles from May 2022. Read More at Enable Sysadmin The post Getting started with RHEL 9, interpreting system log files, and more sysadmin tips appeared first on Linux.com. View the full article

Red Hat Enterprise Linux 9 (RHEL 9), code-named Plow, is now generally available (GA). Red Hat made the announcement on the 18th of May 2022. It takes over from the Beta release which has ... View the full article

The post How to Install EPEL Repository in RHEL 9 Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Installing the EPEL repository is one of the most recommended steps after you install RHEL 9. To make things easy for you, we are not just going to show you installation steps but rather The post How to Install EPEL Repository in RHEL 9 Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

The post How to Upgrade from RHEL 8 to RHEL 9 Release first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Finally, the stable release of RHEL 9 has been released which has brought some of the major changes for better security, and usability, and with the same stability which you can expect from any The post How to Upgrade from RHEL 8 to RHEL 9 Release first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

The post What’s New in Red Hat Enterprise Linux (RHEL) 9 first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Great news for RedHat lovers! Red Hat Enterprise Linux (RHEL) 9 is now generally available (GA). This announcement was made on 18th, May 2022. The latest release is crafted to meet the needs of The post What’s New in Red Hat Enterprise Linux (RHEL) 9 first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

Red Hat Enterprise Linux (RHEL) celebrated its 20th anniversary days before RHEL 9 was released. See how some of our top authors evolved from “what’s this?” to power users. Read More at Enable Sysadmin The post How I got started with RHEL appeared first on Linux.com. View the full article

The post How to Install GLPI [IT Asset Management] Tool on RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides .GLPI is a French acronym for ‘Gestionnaire Libre de Parc Informatique‘ or simply ‘Free IT Equipment Manager‘ It’s an open-source IT asset Management, service Desk System, and issue tracking system written in PHP. GLPI The post How to Install GLPI [IT Asset Management] Tool on RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

The post How to Install Graylog Log Management Tool on RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides .Graylog is an industry-leading opensource log management solution for collecting, storing, indexing, and analyzing real-time data from applications and a myriad of devices in IT infrastructures such as servers, routers, and firewalls. Graylog helps The post How to Install Graylog Log Management Tool on RHEL Systems first appeared on Tecmint: Linux Howtos, Tutorials & Guides.View the full article

Pgadmin4 is an opensource web-based management tool for managing PostgreSQL databases. It’s a Python-based web-application developed using the flask framework at the backend and HTML5, CSS3, and Bootstrap on the frontend. Pgadmin4 is a The post How to Install PostgreSQL and pgAdmin in RHEL 8 first appeared on Tecmint: Linux Howtos, Tutorials & Guides. View the full article

In this article, we described the step by step process to install Cloudera Manager as per industrial practices. In Part 2, we already have gone through the Cloudera Pre-requisites, make sure all the servers The post How to Install and Configure Cloudera Manager on CentOS/RHEL 7 - Part 3 first appeared on Tecmint: Linux Howtos, Tutorials & Guides. View the full article

One of the challenges developers faced in the past is getting applications to run reliably across multiple computing environments. Oftentimes, applications didn’t run as expected or encountered errors and failed altogether. And that’s where The post How to Manage Containers Using Podman and Skopeo in RHEL 8 first appeared on Tecmint: Linux Howtos, Tutorials & Guides. View the full article