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

Checklist for Debugging 502 Bad Gateway in Command Prompt

You're working on a web app or API, and you get a 502 Bad Gateway error. The browser just says '5...

How to Set Up Command Prompt to Auto Start in Windows 10

If you frequently use Command Prompt for scripting or system tasks, having it launch automaticall...

Fix NVM Not Found in Git Bash on Windows

Fix Windows Security Connection Timeout and Permission Denied Errors

You try to access a network share, remote desktop, or a secured website, and Windows Security thr...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus

When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a secure tunnel...

Fix Redis Connection Refused Due to Firewall Settings

If you see 'Redis connection refused' when trying to connect to a remote Redis server, a firewall...