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 Git Push Rejected Non Fast Forward Error

VS Code Source Control Not Detecting Changes After Git Reinstall

If you reinstalled Git and VS Code's Source Control panel stopped detecting file changes, you...

Cloudflare 521 Error: Server Timeout – Causes and Fixes

Cloudflare 521 error indicates the web server is down or unreachable. It appears as “web server i...

Windows Remote Desktop Setup Checklist: 10 Steps to Connect

You've tried to connect to another Windows PC using Remote Desktop, but you get errors like &...

Fix VS Code Breakpoint Not Hit in Docker Container

You set a breakpoint in VS Code, run your app inside a Docker container, and the breakpoint is ne...