title: The server rejected SFTP connection, but it listens for FTP connections
body: <p>When I use WinSCP in Windows to connect to VMware with Ubuntu, it prompted this:</p>
  
  <blockquote>
    <p>The server rejected SFTP connection, but it listens for FTP connections.
    Did you want to use FTP protocol instead of SFTP? Prefer using encryption.</p>
  </blockquote>
  
  <p>What's the matter?<br>
  I can succeed to ping Ubuntu in Windows.</p>