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Fix 'port already allocated' for Nginx in Docker Compose - Enable Windows Defender Real-Time Protection: Step-by-Step-Fixing Docker Build Cancellation in WSL2

Updated 2026-07-28 12:26:39windows-fixes
Fix 'port already allocated' for Nginx in Docker Compose - Enable Windows Defender Real-Time Protection: Step-by-Step-Fixing Docker Build Cancellation in WSL2
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.