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Fix Nginx Configuration Test Syntax Errors - Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix-Fix Docker Compose Port Already Allocated on Linux

Updated 2026-07-28 12:41:34windows-fixes

Fix Nginx Configuration Test Syntax Errors - Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix-Fix Docker Compose Port Already Allocated on Linux

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.