Checklists for software errors, setup, and tool workflows.

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix 'Windows Cannot Access Shared Folder' After Update

After a recent Windows update, you might see the error “Windows cannot access \\computername\shar...

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Repair Corrupt Windows Search Index Database

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

Fix Git 'index.lock' File Exists Error on Linux

When working with Git on Linux, you might see an error like:

fatal: Unable to creat...