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

Windows Defender Real-Time Protection Keeps Turning Off: Fixes

You notice the Windows Security icon in the system tray shows a yellow warning. Opening it reveal...

Fix Nginx 502 Bad Gateway with Docker Multiple Containers

If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...

Fixing Node Sass Build Failures on Linux

Fix Cloudflare Wildcard Subdomain and Root Domain Conflict

If you use a wildcard DNS record (e.g., *.example.com) on Cloudflare, you may run in...

How to Fix Nginx Permission Denied Error

When Nginx returns a 403 Forbidden or logs a "permission denied" error, it usually means ...

Fixing 'git rebase index.lock file exists' Error

When running git rebase, you may see an error like fatal: Unable to create ...