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

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Setup Cloudflare Origin Certificate for Nginx

If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Docker Container Exits Immediately After Entrypoint

You run a Docker container and it stops within seconds. The logs show your entrypoint script ran,...

Fix Nginx Upstream Connection Refused in Proxy Pass