Linux - ITNotes

Immutable Linux: Taming Production Servers with Fedora Silverblue & NixOS

March 22, 2026

Tired of production servers crashing after routine updates or suffering from configuration drift? Immutable Linux distributions like Fedora Silverblue and NixOS offer a powerful solution. This article explains how these innovative approaches provide read-only base systems, transactional updates, and easy rollbacks to bring stability and predictability back to your server management.

Linux

Securing Your Linux Data: A Hands-On Guide to LUKS Disk Encryption

March 21, 2026

Learn how to effectively encrypt Linux disk partitions using LUKS to safeguard your sensitive data. This hands-on guide, drawing from real-world IT engineering experience, walks you through setting up, configuring, and managing encrypted data volumes on your Linux servers.

Linux

Linux Security Hardening with SELinux: A Deep Dive from Basics to Advanced Policies

March 20, 2026

SELinux offers robust Linux security, but its complexity demands a careful approach. This tutorial covers comparing security models, pros and cons after production use, recommended setup, and a detailed implementation guide for basic to advanced SELinux configuration.

Linux

Mastering Systemd Timers on Linux: The Modern Cron Replacement You Need

March 19, 2026

It's time to move beyond traditional Cron jobs. Systemd Timers offer a more powerful and integrated solution for Linux task scheduling. This guide will walk you through migrating your scheduled tasks, showcasing systemd's capabilities for superior logging, dependency management, and enhanced system efficiency.

Linux

Podman vs Docker: Why Many Linux Distros Are Embracing the Daemonless Container Engine

March 17, 2026

Many Linux distributions are shifting from Docker to Podman, embracing its daemonless and rootless architecture for enhanced security and better system integration. Learn about the core differences, pros, and cons, and get a practical guide to setting up and using Podman for your containerized applications.

Linux

How to Secure SSH Server: Disable Root Login and Set Up Key-Based Authentication

March 15, 2026

Default SSH configuration leaves your server exposed to brute-force attacks. This guide walks through disabling root login, setting up key-based authentication, and validating your SSH hardening configuration on Ubuntu/Debian servers.

Linux

How to Install Ubuntu Server Step by Step: A Practical Guide for IT Pros

March 14, 2026

Installing Ubuntu Server is a core skill for any IT professional. This guide walks you through each step, from downloading the ISO to essential post-installation checks, providing a stable, secure base for your projects. Learn practical tips to set up your server efficiently.

Linux

How to Configure a Samba File Server on Linux for Cross-Platform File Sharing

March 14, 2026

Discover how to set up a Samba file server on Linux for robust file sharing among Windows, macOS, and Linux clients. This comprehensive guide details installation, configuring public and secure shares, and essential verification steps to ensure network-wide access to your files.

Linux

Crontab Automation: Mastering Linux Task Scheduling at 2 AM

March 13, 2026

Tired of 2 AM production wake-up calls? Discover how to master Crontab for reliable Linux task automation. This guide covers setup, syntax, and essential best practices, ensuring your critical processes run smoothly and consistently without manual intervention.

Linux

Systemd & Systemctl: Essential Guide to Managing Services on Modern Linux

March 12, 2026

Mastering Systemd and Systemctl is crucial for any Linux engineer facing critical service outages. This tutorial demystifies service management on modern Linux, providing practical commands and a step-by-step guide to creating your own custom services. Equip yourself with the knowledge to troubleshoot effectively and maintain system stability.