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

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Checklist for Pushing Large Files with Git

You've likely hit this: you try to push a commit, and Git rejects it because a file is too la...

Fix Windows 11 WiFi Connected but No Internet: IPv4 Settings

You see the WiFi icon connected, but websites won't load. The network shows “No internet” or ...

Fix Windows Defender Real-Time Protection Stuck Off in Windows 11

You open Windows Security, see real-time protection is off, click the toggle, and it turns back o...