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

Fix NET::ERR_CERT_AUTHORITY_INVALID on Windows 10

You're browsing in Chrome or Edge and see NET::ERR_CERT_AUTHORITY_INVALID. T...

Git Large File Storage Setup Tutorial

If you've ever tried to push a repository containing large binary files—like design assets, d...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Docker Container Exits Immediately: Diagnosing Out of Memory

You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

Fix ERR_CONNECTION_RESET in Chrome on Mac

If you see ERR_CONNECTION_RESET in Chrome on your Mac, the browser cannot establ...