How to Set Up Basic Security Headers on Apache or Nginx
A beginner-friendly guide to adding common website security headers on Apache or Nginx, with notes on CSP, framing and content sniffing.
How to Diagnose High CPU Usage on a Linux Web Server
Troubleshoot high CPU usage on a Linux web server by checking processes, services, logs, traffic patterns, cron jobs and application bottlenecks.
Common Nginx Mistakes That Cause 502 Bad Gateway Errors
Learn the most common Nginx misconfigurations behind 502 Bad Gateway errors, including upstream failures, sockets, permissions and timeouts.
Beginner’s Guide to Reverse Proxying Node.js Apps with Nginx
Learn how to reverse proxy Node.js apps with Nginx using safe headers, systemd, TLS, WebSocket handling and production basics.