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Cloudflare Origin Certificate Setup for Apache - Troubleshooting Nginx 502 Errors in Docker Logs-DNS Probe Finished NXDOMAIN Error Explained

Updated 2026-07-28 10:06:58browser-issues
Cloudflare Origin Certificate Setup for Apache - Troubleshooting Nginx 502 Errors in Docker Logs-DNS Probe Finished NXDOMAIN Error Explained
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.