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

Fix 'port already allocated' Error in Docker Compose

You run docker compose up and see port is already allocated. This means...

How to Recover Stashed Changes in Git Detached HEAD

If you've stashed changes while in a detached HEAD state in Git, you might worry they're ...

Cloudflare DNS Propagation Checklist: Verify and Speed Up Changes

When you change a DNS record in Cloudflare, the update doesn't take effect instantly everywhe...

Docker Container Exits Immediately: Fix with Restart Policy

You start a Docker container, it runs for a second, then stops. No error messages, just a quick e...

Fix Cloudflare Wildcard Subdomain Redirect Loop