Systemd vs rc.local: Why Linux Users Still Argue About Boot Scripts
For over twenty years, dropping a shell script into /etc/rc.local was the universal Linux trick for "run this at boot."…
#Sysadmin
12 posts
Stop Hardening Debian Yourself — Kicksecure Already Did It
You've read the blog posts. The 500-step Debian hardening guide. The kernel parameter list. The AppArmor profile collec…
GitHub and GitLab Artifacts: Where Your Build Output Goes
Your build job finishes. Binary in dist/, coverage XML in coverage/, Docker tarball somewhere in /tmp. Runner says gree…
SSH Keys for GitHub and GitLab: A Practical Mapping Guide
If you've ever set up SSH access to a Linux server, you already know 90% of what's needed to connect to GitHub and GitL…
Arcane: Modern Docker Management UI — A Production-Ready Setup Guide
Introduction: Why Arcane? Managing Docker from the command line is fine — until it isn't. You start with a few contai…
tmux in 30 Days: The Hands-On Challenge That Actually Sticks
Why Another tmux Post You already know tmux is useful. We covered that. Sessions survive SSH drops. Panes let you monit…
tmux is Your Production Tool: Why Every Linux Admin Needs It
Introduction: Your SSH Just Dropped You are 25 minutes into a production deployment. The service is restarting, logs ar…
WireGuard Technology: The Next-Generation VPN
Introduction In my previous deep dive, OpenVPN Technology: A Comprehensive Guide, I walked through how OpenVPN became t…