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

Checklist for Nginx Configuration Test Failure

When you run nginx -t and get a failure, the server won't reload or restart. Thi...

Fix Cloudflare Origin Certificate Mismatch Errors

If you see 'Origin Certificate Mismatch' in Cloudflare or browser warnings, it usually me...

Fix VS Code Source Control Not Detecting Changes on Ubuntu

If you're using VS Code on Ubuntu and the Source Control panel shows no changes even after ed...

Fix Windows Cannot Access Shared Folder HomeGroup

When you see "Windows cannot access \\ComputerName\SharedFolder" while trying to open a H...

Fix Git Push Rejected Non Fast Forward Error

How to Fix Git Authentication Failed in VS Code

You're in VS Code, push or pull fails with "Authentication failed"—this is common and...