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Home / developer-tools / How to Fix Nginx Upstream Connection Refused Error - Ubuntu 23.04 pip externally managed environment fix-Fix 'fatal: refusing to merge unrelated histories' in Git

How to Fix Nginx Upstream Connection Refused Error - Ubuntu 23.04 pip externally managed environment fix-Fix 'fatal: refusing to merge unrelated histories' in Git

2026-07-28 14:23:50developer-tools
How to Fix Nginx Upstream Connection Refused Error - Ubuntu 23.04 pip externally managed environment fix-Fix 'fatal: refusing to merge unrelated histories' in Git

Final checklist

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