Knowledge base for software setup, errors, and daily tool work.

Fixing Nginx 502 Bad Gateway with Docker and Load Balancers

If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...

Fix ERR_CONNECTION_RESET by Clearing Browser Cache

When you see the ERR_CONNECTION_RESET error in Chrome, it usually means the conn...

Fix Nginx Upstream Connection Refused Behind Cloudflare

If you see upstream connection refused in your Nginx error logs while using Cloudfla...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix Firefox Secure Connection Failed Due to Cache

You see a 'Secure Connection Failed' error in Firefox, often with messages like PR_CO...