Troubleshooting

Nginx shows 502 Bad Gateway, PHP-FPM won't start, and the usual config test passes. The real issue is often a stuck FPM process holding the socket. Here's how to find it and fix it safely.

When something breaks, the access log tells a story. Learn how to read live and gzipped logs, find top IPs and failing URLs, zoom in on time windows, and tie logs to WAF blocks using simple command-line tools.

Locked out of your self-hosted Confluence instance? This emergency guide shows IT administrators how to safely restore admin access through direct database modifications with SQL.