How to Safely Migrate from MySQL to PostgreSQL (Step-by-Step)

Migrate MySQL to PostgreSQL

Learn how to safely migrate your MySQL database to PostgreSQL with this step-by-step guide. Get tips on tools, data migration, schema conversion, and performance optimization. Table of Contents 🔈Introduction Migrating from MySQL to PostgreSQL is an important yet sometimes tricky process. Whether you’re moving to PostgreSQL for better performance, richer features, or scalability, understanding the […]

Upgrade to PHP 8.4 on Ubuntu 22.04 | 24.04

Upgrade PHP 8.4 Ubuntu 22.04 24.04

Upgrade to PHP 8.4 on Ubuntu 22.04 or 24.04 with this complete, step‑by‑step guide. Includes commands, configuration, Apache & Nginx setup, troubleshooting, and best practices to ensure a smooth migration. Table of Contents 🔈Introduction Modern PHP releases bring faster execution, new features, and better security. PHP 8.4, though still developing in mid‑2025, is increasingly adopted by developers. If you’re […]

How to Enable Fail2Ban to Block Repeated Failed Login Attempts on Linux

Enable Fail2Ban to block failed login attempts

Learn how to configure Fail2Ban to block repeated failed login attempts on Linux. Step-by-step guide with commands, configuration examples, and security tips for SSH and other services. Table of Contents 🔈Introduction In today’s threat landscape, brute-force attacks are a common way attackers attempt to gain unauthorized access to Linux servers. A simple and effective defense […]

Set Up VLANs Using NMCLI on RHEL 9

Set Up VLANs Using NMCLI on RHEL 9

Learn how to set up VLANs using nmcli on RHEL 9 with this step-by-step guide. Includes CLI examples, troubleshooting tips, and best practices for configuring VLAN interfaces in a Linux environment. Table of Contents 🔈Introduction In modern enterprise networks, Virtual LANs (VLANs) are essential for segmenting traffic, improving security, and optimizing performance. On Red Hat Enterprise […]

Upgrade Ubuntu‑22.04 to 24.04 in 5 Steps

Upgrade Ubuntu 22.04 to 24.04 LTS

Step‑by‑step guide: how to safely upgrade Ubuntu 22.04 LTS (“Jammy”) to Ubuntu 24.04 LTS (“Noble”) in 5 essential steps—backup, update, configure the upgrader, run the release upgrade, and verify clean‑up. Table of Contents 🔈Introduction Upgrading from Ubuntu 22.04 LTS (“Jammy Jellyfish”) to Ubuntu 24.04 LTS (“Noble Numbat”) is a major step forward: newer kernel, updated toolchains, long‑term support until […]

How to Configure Secure TLS Settings in Apache on RHEL 9 | CentOS Stream 9

Secure Apache TLS configuration on RHEL 9 | CentOS Stream 9

Secure your Apache web server on RHEL 9 or CentOS Stream 9 with a hardened TLS configuration. Learn how to enable TLS 1.2/1.3, enforce strong ciphers, configure HSTS, and test your setup. Table of Contents 🔈Introduction Transport Layer Security (TLS) is the backbone of modern web encryption, ensuring data transmitted between clients and servers remains […]

Text Processing Tools in Linux: sed and awk Explained

Text Processing Tools in Linux: sed and awk

Master Linux text processing: learn how to use sed for quick edits and awk for powerful field-based reports, with examples, tips, and command pipelines. Table of Contents 🚀 Introduction In the world of Linux command‑line text processing, two tools reign supreme: sed (stream editor) and awk (pattern scanning and processing language). These tools provide extraordinary flexibility for transforming, filtering, […]

Enable and Use Remi Repository on RHEL 10 | CentOS 10

Enable Remi repository RHEL 10

Learn to enable and use the Remi repository on RHEL 10 / CentOS 10 for installing modern PHP, MariaDB, and LAMP‑stack components safely and selectively. Table of Contents 🔈Introduction The Remi repository offers up-to-date versions of popular server-side software—such as PHP, MySQL, and MariaDB—not typically included in the default Enterprise Linux distributions. Combining Remi with EPEL and […]

How to Configure Remote Development in VSCode on RHEL 10: A Complete Guide

Remote Development in VSCode on RHEL 10

Learn how to configure remote development in VSCode on RHEL 10 with SSH, WSL, and containerized workflows. Boost productivity and streamline your development process with this comprehensive guide. Table of Contents 🚀 Introduction Visual Studio Code (VSCode) has become one of the most popular integrated development environments (IDEs) due to its versatility, extension support, and […]

Install VSCode on RHEL 10 Workstation

Install VSCode on RHEL 10 Workstation

Install Visual Studio Code on RHEL 10 Workstation in minutes. Follow this clear, step‑by‑step guide with CLI snippets, tables, repo setup, troubleshooting tips, and extension management to get VSCode running smoothly on your enterprise Linux platform. Table of Contents 🔈Introduction Visual Studio Code (VS Code) has quickly become one of the most popular code editors […]