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

Fix Cloudflare Wildcard Subdomain Page Rule Not Working

You set up a wildcard subdomain page rule in Cloudflare—like * .example.com/*—but it...

Fixing Nginx Permission Denied on Mounted Drive

When you mount an external drive and point Nginx to serve files from it, you may get a 403 Forbid...

How to Fix Chrome Profile Sync Error

You open Chrome and see a message like 'Sync is paused' or 'Profile sync error.' ...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Python Requests Timeout Not Waiting: Fixes and Checks

You set a timeout in Python's requests library, but the call either hangs foreve...