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

Git Merge Unrelated Histories Without Losing Commits

You've cloned a repo, added a new remote, and now you need to merge two branches that don'...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Docker Network Not Found in Swarm Mode: Fixes & Causes

When running Docker in Swarm mode, you might see an error like network "xyz" not fo...