20 Useful Sed Commands With Examples

20 Useful SED commands

Discover 20 useful sed commands for text processing in Linux. Learn how to perform substitutions, deletions, insertions, and more with practical examples and tips. Enhance your text manipulation skills with this comprehensive guide. Table of Contents Introduction The sed (stream editor) command in Linux is a powerful tool for processing and transforming text. It is […]

Install Zabbix with PostgreSQL Database on RHEL 9 | CentOS 9: A Comprehensive Guide

Install Zabbix with PostgreSQL on RHEL 9

Learn how to install Zabbix with PostgreSQL on RHEL 9 | CentOS 9 with our comprehensive step-by-step guide. Follow clear instructions with CLI examples and configuration tips to set up a powerful monitoring solution. Table of Contents Introduction Zabbix is one of the most popular open-source monitoring tools available, providing comprehensive real-time monitoring of systems, […]

Deploy a PostgreSQL Database Cluster Using Pacemaker on RHEL 9 | CentOS 9

PostgreSQL database cluster using Pacemaker

Learn how to deploy a highly available PostgreSQL database cluster using Pacemaker on RHEL 9 or CentOS 9. This comprehensive guide covers installation, configuration, and testing steps, ensuring robust data integrity and uptime. Perfect for IT professionals seeking reliable high-availability solutions. Table of Contents Introduction Setting up a highly available PostgreSQL database cluster is essential for […]

Upgrade from Fedora 35 to Fedora 37

Upgrade from Fedora 35 to Fedora 37

Learn how to upgrade from Fedora 35 to Fedora 37 with this comprehensive guide. Follow step-by-step instructions, including preparation, upgrading, and post-upgrade tasks, to ensure a smooth transition. Enhance your system’s performance and security with the latest Fedora features. Table of Contents Introduction Upgrading your Fedora operating system can seem daunting, but with the right […]

Install and Configure IPA/idM on RHEL 9 | CentOS 9

Install and Configure IPA/idM on RHEL 9

Learn how to install and configure IPA/IdM on RHEL 9 and CentOS 9. This comprehensive guide covers prerequisites, step-by-step installation, user management, and enabling 2FA for enhanced security. Table of Contents Introduction Identity Management (IdM) or Identity, Policy, and Audit (IPA) is a robust, scalable, and secure centralized identity management system. It is especially useful […]

16 Useful Crontab Examples: Simplify Your Task Automation

16 Useful Crontab Examples

This article delves into 16 useful Crontab examples to help you wield this powerful tool effectively. Table of Contents Introduction In the realm of task automation, Crontab stands as a reliable ally. Whether you’re a system administrator, a developer, or simply someone looking to streamline repetitive tasks, mastering Crontab can significantly enhance your productivity. 16 […]

How to Upgrade Ubuntu 23.10 to Ubuntu 24.04: A Comprehensive Guide

Upgrade Ubuntu 23.10 to 24.04

Learn how to upgrade Ubuntu 23.10 to 24.04 with our comprehensive step-by-step guide. Ensure a smooth transition with pre-upgrade checklists, troubleshooting tips, and a comparison of new features. Table of Contents Introduction Upgrading your Ubuntu operating system from one version to another ensures that you have the latest features, security updates, and performance improvements. If you’re […]

Install Vagrant on RHEL9 or CentOS9

Install Vagrant on RHEL9

In this article, we will review how to install vagrant on RHEL9 or CentOS9 as well as, some usage scenarios to gain a better understanding. Table of Contents Introduction Virtualization has become a cornerstone for efficient software development and testing. Vagrant, when combined with Virtualbox, offers a powerful solution for creating and managing virtual environments. […]