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

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How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix Windows 11 Wi-Fi No Internet by Disabling IPv6

If your Windows 11 PC connects to Wi-Fi but shows 'No internet' while other devices work ...

Fix Docker Volume Permission Denied for MySQL

You attempt to run a MySQL container with a bind mount volume and get an error like mkdir: ...

Fix 'Externally Managed Environment' Error on Linux
If you're on a modern Linux distribution (Ubuntu 23.04+, Debian 12+, Fedora 38+, etc.) and ge...

Fix 'docker network not found' Error on Windows
If you see Error response from daemon: network <name> not found when running D...


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Resolve 502 Bad Gateway in Docker Nginx MySQL Setup
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