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

Fix Nginx Upstream Connection Refused in Docker

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

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Debugging Nginx Redirect Loops: Step-by-Step Guide

You try to load a site and the browser keeps spinning or shows 'ERR_TOO_MANY_REDIRECTS'. ...

Fix Docker Nginx 502 Bad Gateway After Restart

After restarting your Docker containers, you might see a 502 Bad Gateway error when accessing you...

Fix Cloudflare DNS Propagation Not Happening for www

You updated DNS records for your www subdomain in Cloudflare, but hours (or days) later, the chan...

How to Fix Git LFS Push Error 403

You're trying to push a large file with Git LFS and get a 403 error. This usually means the s...