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

Docker Compose Environment Variable Not Working: Fixes

You define a variable in a .env file or directly in docker-compose.yml, but your container sees n...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix DNS Probe Finished NXDOMAIN in Edge Browser

When Microsoft Edge shows "DNS_PROBE_FINISHED_NXDOMAIN", it means the browser cannot reso...

Fix Windows Security App Not Responding: Step-by-Step

You open Windows Security to run a scan or check protection, but the app freezes, shows a blank w...

Docker Container Exits Immediately in Docker Compose

If your Docker container exits immediately after starting with docker compose up, it...

Reinstall Docker Desktop Engine Without Losing Images

If you need to reinstall Docker Desktop's engine—perhaps to fix a corrupted engine or update ...