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

Fix Nginx Config Test Failure After Adding SSL Certificate

You added an SSL certificate to your Nginx server block, ran nginx -t, and got an er...

Fix Command Prompt 404 Not Found Error

If you're seeing a '404 Not Found' error in Command Prompt, it usually means the file, command, o...

Fix Microsoft Teams Screen Sharing Not Working on Ubuntu

Screen sharing in Microsoft Teams on Ubuntu often fails silently—your audience sees a black scree...

Complete Windows Security Setup Checklist

If you're setting up a new Windows machine or hardening an existing one, this checklist covers th...

Fix 'Connection Refused' in Windows Terminal to Remote Server

When you see 'connection refused' in Windows Terminal while trying to connect to a remote server ...

Fixing GitHub Actions Permission Denied for Git Commands