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Fix Nginx 13 Permission Denied Error: Step-by-Step - Fix Nginx Upstream Connection Refused in Proxy Pass-Git Detached HEAD: Practical Checklist and Fixes

2026-07-28 10:38:15developer-tools
Fix Nginx 13 Permission Denied Error: Step-by-Step - Fix Nginx Upstream Connection Refused in Proxy Pass-Git Detached HEAD: Practical Checklist and Fixes

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.

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