Expert tutorials, guides, and tips on Linux, DevOps, and IT Administration
Level up your SSH skills with 15 practical tips: multiplexing, tunnels, jump hosts, agent forwarding, config file tricks, and security hardening....
Learn how to create a bulletproof Linux disaster recovery plan. From backup verification to automated failover — protect your servers from catastrophic data loss....
Set up automated, encrypted Linux backups with rsync and Borg Backup. Complete guide with cron schedules, retention policies, and monitoring scripts....
We published two editions of our Bash Book — the original classic (452 pages) and the fully revised 2nd Edition (352 pages) for 2026. This in-depth comparison breaks down what changed, what is new, and which edition suits your skill level and goals....
Perl may not be trending on social media, but it quietly powers critical infrastructure at thousands of companies. This honest assessment examines where Perl excels in 2026, why it refuses to die, and whether it deserves a place in your skill set — with practical examples and career advice....
PowerShell is no longer just a Windows tool — it runs on Linux, macOS, and in the cloud. This comprehensive guide covers modern PowerShell 7 scripting, Azure automation, cross-platform workflows, and why PowerShell skills are essential for every IT professional in 2026....
Zsh has replaced Bash as the default shell on macOS and is rapidly gaining ground on Linux. This guide covers why developers prefer Zsh, how to set it up with Oh My Zsh, the best plugins and themes, and advanced features that will supercharge your terminal workflow....
Bash remains the most powerful tool in every Linux administrator's arsenal. This comprehensive guide covers everything from variables and loops to advanced techniques like process substitution, signal trapping, and production-grade error handling — with real-world examples you can use immediately....
Stop doing repetitive tasks manually. These 10 Python automation scripts — from file organization to report generation — can save you 5-10 hours per week. Complete with code examples and explanations....
You are probably paying €50-200/month for SaaS tools you could self-host for free. From cloud storage to project management, here are the best self-hosted alternatives to every major SaaS product — with step-by-step deployment guides....
The cybersecurity industry has over 3.5 million unfilled positions worldwide, and employers are dropping degree requirements. Here is the exact roadmap — certifications, skills, projects, and resources — to land your first cybersecurity job in 2026....
Building a homelab is the single best investment you can make in your IT career. This comprehensive guide covers everything from choosing hardware to running production-grade services — turning your spare room into a personal data center....