Tutorials
Docker Compose Resource Limits, Healthchecks, and Restart Policies
Your Compose file works in dev but is not production-ready. Learn how to add memory/CPU limits, healthchecks, restart policies, and startup ordering to protect your VPS from OOM kills and cascading failures.
Docker Security Hardening: Rootless Mode, Seccomp, AppArmor on a VPS
Seven hardening layers for Docker on a VPS. Each section explains the threat, shows the fix with CLI and Compose syntax, and verifies it works.
Nginx Performance Tuning on a VPS
Tune Nginx for production traffic on a Linux VPS. Covers worker processes, compression, caching, HTTP/2, TLS optimization, kernel sysctl, and benchmarking with wrk.
Run Claude Code on a VPS: Install, Secure, and Persist Sessions
Set up Claude Code on a remote Linux server with headless authentication, tmux session persistence, and proper security hardening. Complete setup guide.
How to Use GNU Screen on a Linux VPS
Learn GNU Screen from installation to daily use. Manage sessions, split regions, configure .screenrc, and keep processes running after SSH disconnects on Debian 12 and Ubuntu 24.04.