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

Fix err_name_not_resolved Caused by Chrome Extensions

If you see err_name_not_resolved in Chrome, a misbehaving or conflicting extension c...

How to Fix Nginx Permission Denied Error

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

Fix Windows 11 Bluetooth Driver Not Working

You're trying to connect a Bluetooth device in Windows 11, but the toggle is grayed out, devi...

How to Enable Windows Defender Real-Time Protection via Group Policy

If Windows Defender real-time protection is turned off and grayed out, it's often because a G...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Git Push Rejected Non Fast Forward: How to Fix