title: FTP - `Name or service not know`
body: <p>I have an app, on my iphone, which allows me to transfer songs too and from my linux desktop via ftp. The app indicates that the host address is <code>192.168.0.4</code> and the port to be used is <code>5021</code>. I can connect fine to the device from filezilla but when I try to connect via the command line it fails with the error mentioned in the title.</p>
  
  <p>The command i'm using is <code>ftp 192.168.0.4:5021</code> but it fails. I'm totally stumped. When I search for help on the internet the answer is to simply do what I've done already.</p>
  
  <p>Does anyone have an any idea on what to do?</p>