Fix Nginx Configuration Test Failed on Ubuntu - Fix Nginx Cannot Connect to PHP-FPM (Connection Refused)-Resolve Docker Pull Access Denied in CI/CD

Updated 2026-07-28 13:32:39developer-tools
Fix Nginx Configuration Test Failed on Ubuntu - Fix Nginx Cannot Connect to PHP-FPM (Connection Refused)-Resolve Docker Pull Access Denied in CI/CD
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.