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

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Recover Lost Changes After Git Detached HEAD

You've made several edits, then checked out an old commit or tag, and now Git says you're...

Docker Container Exits Immediately: How to Find Logs and Fix It

You start a Docker container and it stops within seconds. The status shows "Exited (0)" o...

Fix Docker Build Context Canceled by Symlink Errors

If you see context canceled during a docker build and you have symlinks...

Python Command Not Found in CMD but Works in Anaconda

You open Command Prompt, type python, and get 'python' is not recogniz...