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

UFW Deny Port But Still Accessible: Fixes and Checks

You set a UFW deny rule for a specific port, but the port remains accessible from outside. This i...

Find the macOS Task Scheduler Configuration File Location

If you've set up scheduled tasks on macOS using launchd, you might need to find the ...

Task Scheduler 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when a scheduled task runs, it usually means the task tried to...

Windows Update Service Not Running: How to Fix

If Windows Update fails to check for updates and you see an error like “Windows Update service is...

Fix nvm not working in CMD or PowerShell on Windows