119 articles found
The ultimate 2026 guide to Kali Linux — from installation and Nmap scanning to Metasploit exploitation, web app testing with Burp Suite, wireless attacks, Active Directory pentesting, and building your own security lab. Includes free 20-page PDF cheat sheet....
Master WireGuard VPN from installation to production. Learn key generation, server/client configuration, site-to-site tunnels, mesh networks, firewall setup, performance tuning, and security best practices in this comprehensive 2026 guide....
Master cron from syntax to production. Complete guide covering crontab syntax, scheduling patterns, environment setup, logging, security, practical automation examples, systemd timer comparison, and troubleshooting for Linux administrators....
Master systemd from basics to advanced. Complete guide covering service management, unit files, targets, timers, journalctl logging, cgroups resource control, security sandboxing, and troubleshooting for Linux administrators....
Master Vim from zero to productive. Complete guide covering modal editing, navigation, editing commands, search/replace, buffers, windows, .vimrc configuration, essential plugins, Neovim comparison, and productivity tips for developers and sysadmins....
A comprehensive comparison of nftables and iptables for Linux firewall management in 2026. Learn the key differences, when to migrate, and get our free 6-page cheat sheet PDF....
Master Ubuntu from installation to production server deployment. Complete guide covering desktop and server editions, package management with APT, snap packages, system administration, security hardening, networking, cloud integration with Ubuntu Pro, and best practices for developers and sysadmins....
Master NGINX from installation to production deployment. Complete guide covering server blocks, reverse proxy, load balancing, SSL/TLS with Let's Encrypt, security headers, rate limiting, performance tuning, and Docker deployment with practical examples....
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