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

How to Set Up a Wildcard Subdomain DNS Record in Cloudflare

If you need all subdomains (e.g., *.example.com) to point to the same IP or service, a wildcard D...

How to Create a New Branch from a Detached HEAD in Git

If you see a message like "You are in 'detached HEAD' state" in Git, it means you...

Repair Corrupt Windows Search Index Database

When Windows Search stops returning files or emails, or the search box hangs, a corrupt index dat...

Fix Nginx Upstream Connection Refused in Proxy Pass