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Home / macos-help / Fix ERR_NAME_NOT_RESOLVED with ipconfig /flushdns in Chrome - Git Rebase Error: index.lock File Exists – Solution-How to Fix Nginx 502 Upstream Connection Refused

Fix ERR_NAME_NOT_RESOLVED with ipconfig /flushdns in Chrome - Git Rebase Error: index.lock File Exists – Solution-How to Fix Nginx 502 Upstream Connection Refused

Updated 2026-07-28 04:15:21macos-help
Fix ERR_NAME_NOT_RESOLVED with ipconfig /flushdns in Chrome - Git Rebase Error: index.lock File Exists – Solution-How to Fix Nginx 502 Upstream Connection Refused
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.