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...

MongoDB Authentication Failed: Administrator Checklist

How to Fix Task Scheduler Token Expired Error

When a scheduled task fails with a 'token expired' error, it usually means the task cannot authen...

Docker Compose Network Not Found: Fixes and Solutions

When running docker-compose up, you might see an error like network not found<...