title: Getting "I won't open a connection to" when connecting to FTP server from Google Compute Engine
body: <p>I ssh'ed to my Google Compute Engine's VM. And want to ftp to another server from there. It asked my username and password, I could login without problem. But when I do <code>ls</code> or <code>get</code>, I receive this error:</p>
  
  <pre><code>500 I won't open a connection to 10.240.XX.XX (only to XX.XX.XX.XX)
  ftp: bind: Address already in use
  </code></pre>
  
  <p>That 10.240.XX.XX is my internal IP address I saw in <code>ifconfig</code> result.</p>
  
  <p>How can I transfer files from another server using FTP?
  System: Debian7</p>