Workflow manuals for setup steps, repeatable tasks, and software operations.

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....

Fix Nginx 403 Forbidden: Permission Denied Errors

You're trying to access a site served by nginx, but you get a 403 Forbidden ...

Fix DNS Probe Finished NXDOMAIN in Edge Browser

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

Fix Git 'index.lock' File Exists Error on Linux

When working with Git on Linux, you might see an error like:

fatal: Unable to creat...