Tag: Linux

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

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

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

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 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

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

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

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 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 […]

Install and Configure AutoFS on RHEL 9

Learn how to install and configure AutoFS on RHEL 9 to automate the mounting of NFS and SMB shares. This step-by-step guide covers installation, configuration, troubleshooting, and advanced features for efficient file system management. Table of Contents 🔈Introduction In the world of Linux, automating network file system (NFS) mounts is essential for optimizing workflows, improving […]

Install EPEL on RHEL 10 | CentOS 10

Learn how to install and enable the EPEL repository on RHEL 10 or CentOS 10 step-by-step, with CLI commands, troubleshooting tips, and best practices. Table of Contents 🔈Introduction Installing the Extra Packages for Enterprise Linux (EPEL) repository on RHEL 10 or CentOS 10 unlocks a vast collection of high-quality, community-maintained open-source packages that are not included in the default repositories. Whether you’re managing a server […]