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

Ubuntu Command Prompt Not Working After Update: Fixes

After a system update, you might find that the Ubuntu command prompt (terminal) is not working—it...

GitHub Actions Workflow Stuck Pending: How to Fix

You push a commit expecting a workflow to run, but it sits in a pending state for minutes or hour...

Windows Activation 502 Bad Gateway: Troubleshooting Checklist

If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...

WireGuard Handshake Not Completing: Peer Not Responding Fix

You see "handshake did not complete after 5 seconds, retrying" or "peer not responding" in your W...

Fix Permission Denied Errors in GitHub Actions Workflows

You're running a GitHub Actions workflow and it fails with a permission denied error...

Chrome SSL Protocol Error Troubleshooting Guide