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

Fix Windows 11 WiFi No Internet Due to Antivirus Blocking

If your Windows 11 PC shows full WiFi bars but no internet access, your antivirus might be blocki...

Understanding and Fixing Git Detached HEAD State

If you've seen the message You are in 'detached HEAD' state in Git, you ...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

Fix 'port already allocated' for Nginx in Docker Compose

You're starting your Docker Compose setup with Nginx, and you see "port is already alloca...

How to Downgrade Node.js for Package Compatibility

You install a package and get errors like requires Node.js >= 16, but you have 18...

Docker Container Exits Immediately with Code 0: Fixes

You run a Docker container and it stops almost instantly with exit code 0. This means the main pr...