Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Disable pip's Externally Managed Environment Warning
If you see the error error: externally-managed-environment when trying to install Py...
Fix Docker Volume Permission Denied chown Errors
You mount a volume into a container, run a command that changes file ownership (e.g., chown...
Fix Docker Volume Permission Denied for Non-Root User
You run a Docker container as a non-root user and get a permission denied error when trying to wr...
Fix Nginx Upstream Connection Refused & Upstream Not Found
When you see upstream connection refused or upstream not found in your ...
Docker Network Not Found When Running Container: Fixes
When you try to run a Docker container with --network and get an error like ne...
Topic paths
Quick titles
Fix Docker No Space Left on Device ErrorWhy Chrome Extensions Are Not Loading and How to FixWindows 11 Blue Screen After Driver Update: Rollback FixVS Code Integrated Terminal Command Not Found GuideFixing Nginx Connection Refused to UpstreamResolve 0x800f081f Update FailureWindows Defender Stuck on Turning Off Real-Time Protection FixResetting SoftwareDistribution to Fix Update Error 0x80070002