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

Docker Nginx 502 Bad Gateway: Memory Limit Fix

You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...

Fix Nginx Redirect Loop After SSL Setup

You've set up SSL on your Nginx server, but now visitors get stuck in a redirect loop—HTTP→HT...

Fix Docker Volume Permission Denied on Mac

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

Fix npm install Permission Denied When Using nvm

If you see 'EACCES: permission denied' when running npm install while using ...

Docker Build Context Canceled: Checklist and Fixes

You run docker build and see context canceled before the build finishes...