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

How to Set Up a Wildcard Subdomain DNS Record in Cloudflare

If you need all subdomains (e.g., *.example.com) to point to the same IP or service, a wildcard D...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

How to Fix Nginx Redirect Loop 302 Errors

You're seeing a 302 redirect loop in Nginx — the browser keeps bouncing between URLs until it...

VS Code Git Changes Not Detected After Clone: Fixes

You clone a repository, open it in VS Code, but the Source Control panel shows no changes—even th...

Fix Python UnicodeDecodeError in Socket Data

When working with Python sockets, you may encounter a UnicodeDecodeError while tryin...