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Fix Nginx Upstream Connection Refused & Upstream Not Found - Fix Nginx 502 Bad Gateway with Docker Environment Variables-VSCode Rust Completion Not Showing

2026-07-28 09:46:14developer-tools
Fix Nginx Upstream Connection Refused & Upstream Not Found - Fix Nginx 502 Bad Gateway with Docker Environment Variables-VSCode Rust Completion Not Showing

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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