Practical software fixes, setup guides, and tool workflows.

Nginx Upstream Connection Refused: Diagnosis and Fixes

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

Docker Compose 'Network Not Found' Error Fix

When running docker compose up, you might see an error like:

network "my...

                            

Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan

You're upgrading to Windows 11 using the Installation Assistant, and it hangs at 99% while ru...

Fixing Nginx 502 Bad Gateway in Docker WordPress Setups

If you're running WordPress in Docker behind an Nginx reverse proxy, a 502 Bad Gateway error ...

Fix DNS Probe Finished NXDOMAIN for a Specific Website

If you see the error "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome when trying to visit a speci...

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...