GNU Linux
Step-by-step guide to installing VirtualBox Guest Additions 7.2.20 on Linux: kernel headers, modules, Secure Boot, shared folders, troubleshooting, and verification.
An introduction to Kali Linux 2026.2: authorized security testing, rolling updates, APT changes, virtual machines, tools, and a practical learning…
Step-by-step guide to installing WordPress on Ubuntu Server 24.04 LTS with Apache, MySQL 8.0, PHP 8.3, and Let's Encrypt HTTPS…
Step-by-step Debian 12 Bookworm + KDE Plasma installation guide, updated for Bookworm's 2026 LTS status, including downloads, partitioning, Wayland/X11, repositories,…
Historical and updated Debian 12 Bookworm netinst server guide with 40 original screenshots, networking, partitioning, APT, SSH, LTS status, and…
A complete introduction to GNU/Linux: GNU vs. Linux, the kernel, distributions, systemd, terminal, desktops, package managers, security, containers, and current…
A current guide to installing Ubuntu 20.04.6 LTS for compatibility labs and legacy systems, including ESM coverage, storage, updates, and…