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

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix Python venv Not Activating in VS Code Terminal

When you create a Python virtual environment but it doesn't activate in the VS Code terminal,...

How to Fix Cloudflare SSL Full Strict Self-Signed Certificate Error

Cloudflare SSL Full Strict Troubleshooting Steps

If you have set Cloudflare SSL/TLS encryption to Full (strict) and your site shows errors like 52...

How to Recover from a Detached HEAD in Git After a Rebase

You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...