Expert tutorials, guides, and tips on Linux, DevOps, and IT Administration
Explore the complete Dargslan open-source IT ecosystem: 120 Linux PyPI packages, 119 Windows Python CLI tools, 120 PowerShell modules on PSGallery, and organized GitHub repositories. Free, professional-grade tools for sysadmins, DevOps engineers, and cybersecurity professionals....
Side-by-side comparison of tmux, GNU Screen, Byobu, and Zellij. Feature tables, keybinding comparison, and recommendations for every use case....
Side-by-side comparison of managing Linux vs Windows servers from Mac. Protocols, tools, workflows, and when to use each. Free 6-page PDF cheat sheet included....
Discover Ethan Marshall, Dargslan's cybersecurity author who brings years of enterprise security operations experience to his books on network security, ethical hacking, and security certifications....
Get to know Thomas Ellison, Dargslan's leading Windows Server and Active Directory author. Learn about his enterprise IT background, writing approach, and the books that help thousands manage Windows infrastructure....
Configure essential Active Directory Group Policy settings for Windows security. Covers password policies, account lockout, audit policies, software restrictions, and GPO management....
Compare the best Linux terminal emulators in 2026. From lightweight options like Alacritty to feature-rich choices like Kitty and WezTerm, find the perfect terminal for your workflow....
Every organization needs an incident response plan before a breach occurs. Learn how to build a comprehensive IR plan covering preparation, detection, containment, eradication, recovery, and lessons learned — with practical templates and real-world scenarios....
Navigate the cybersecurity certification landscape with this curated list of the 15 most valuable certifications in 2026. Includes costs, difficulty levels, salary impact, and study resources....
Curated list of the best Linux books for 2026 covering beginner guides, command line mastery, system administration, security, and certification prep....
Load average is the most misunderstood Linux metric. Learn what 1/5/15 minute load means relative to CPU count, how to identify bottlenecks, and when to worry....
Low entropy causes SSL/TLS slowdowns and blocks cryptographic operations. Learn to monitor the entropy pool, install entropy daemons, and ensure crypto readiness....