Guides from the NOC

Wildcard SSL failing over HTTP-01? Learn why Let's Encrypt needs DNS-01 validation and how to set up wildcard certs with Certbot or acme.sh.

Set up Traefik on your VPS to auto-route Docker containers and issue Let's Encrypt SSL with zero config reloads. Step-by-step guide with fixes for common err...

Step-by-step guide to installing Apache, MySQL/MariaDB, PHP and a free SSL cert on a bare Ubuntu VPS, plus the vhost and .htaccess errors people hit.

Step-by-step guide to installing Nginx, PHP-FPM, MySQL/MariaDB and a free SSL cert on a bare Ubuntu VPS, plus the errors people hit along the way.

Scale past a single VPS with HAProxy: load balance traffic across backend servers using health checks, sticky sessions, algorithms, and SSL termination.

Server time wrong on your VPS? See how clock drift silently breaks cron jobs, SSL handshakes, and MySQL replication - and fix it for good with chrony.

Let's Encrypt renewal failing on your VPS? Learn the six real causes - port 80, DNS-01, rate limits, missing hooks - and fix each one step by step.

Learn how to host several websites on a single VPS with Nginx server blocks - correct document roots, per-domain SSL, and fixes for common config mistakes.

Set up Nginx as a reverse proxy on your VPS, secure it with free Let's Encrypt SSL, and fix 502 Bad Gateway, 504 Timeout, and WebSocket disconnect errors.