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

Fixing WireGuard Handshake Errors on Windows

If you're using WireGuard on Windows and seeing "Handshake did not complete" or "No handshake rec...

How to Fix Gradle Build Failed Error

When a Gradle build fails, you typically see a red message in the console with an error stack tra...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...

MongoDB Authentication Failed After Upgrade: Fixes That Work

After upgrading MongoDB, you might see "Authentication failed" even though credentials haven't ch...

Fix kubectl apply Forbidden on GKE

Fix Windows Security Blank Screen in Safe Mode

If you boot into Safe Mode and open Windows Security only to see a blank white or gray screen, yo...