zhizhu
Home / cloud-software / PostgreSQL Connection Refused: Remote Server Fixes - Resolve 'Command Not Found' for Ubuntu in PowerShell-How to Fix Windows Defender 502 Bad Gateway Error

PostgreSQL Connection Refused: Remote Server Fixes - Resolve 'Command Not Found' for Ubuntu in PowerShell-How to Fix Windows Defender 502 Bad Gateway Error

Updated 2026-06-15 13:01:16cloud-software
PostgreSQL Connection Refused: Remote Server Fixes - Resolve 'Command Not Found' for Ubuntu in PowerShell-How to Fix Windows Defender 502 Bad Gateway Error
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.