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

Fixing Cloudflare 522 Errors with Load Balancer Setup

If you see a Cloudflare 522 error, the connection between Cloudflare and your origin server timed...

Fix Windows 11 Installation Assistant Frozen During Update

You launch Windows 11 Installation Assistant to upgrade from Windows 10, but the progress bar sto...

Fix Chrome Certificate Error After Update

After a Chrome update, you might see errors like “Your connection is not private” or “NET::ERR_CE...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix Cloudflare Wildcard Subdomain Not Resolving

You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) expecting all s...

How to Resolve Permission Denied Errors with pip install

If you see PermissionError: [Errno 13] Permission denied while running pip ins...