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Fix Nginx 'upstream connection refused' When Talking to PHP-FPM - How to bypass pip externally-managed-environment on Ubuntu 23.04-Git Rebase Error: index.lock File Exists – Solution

2026-07-28 13:58:52
Fix Nginx 'upstream connection refused' When Talking to PHP-FPM - How to bypass pip externally-managed-environment on Ubuntu 23.04-Git Rebase Error: index.lock File Exists – Solution

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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