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

Fix Cloudflare Origin Certificate Mismatch Errors

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

Fix 'pip externally managed environment' on Ubuntu 23.04

If you're on Ubuntu 23.04 (Lunar Lobster) and try to install a Python package with pip, you m...

Fix Windows Update Error 0x80070002 by Resetting SoftwareDistribution Folder

Windows Update error 0x80070002 often appears when the system cannot find or access the update fi...

Fix VS Code Source Control Not Detecting Changes on Windows 11

If you're using VS Code on Windows 11 and the Source Control panel isn't showing your fil...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...