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

Fix Edge Sync Not Syncing Tabs Across Devices

You open a tab on your desktop, but it doesn't show up on your phone or laptop. This is a com...

Docker Container Exits Immediately with Volume Mount – Fixes

You start a Docker container with a volume mount, and it exits immediately – no error, or just a ...

Fix DNS Probe Finished NXDOMAIN: Chrome Flags Reset Guide

When you see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, it usually means the browser...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Fix Nginx Configuration Test Failed on Ubuntu

When you run nginx -t on Ubuntu and get an error, Nginx won't reload or restart....

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...