title: Lock down access to Azure VM to specific IP
body: <p>We're planning to sign up for the Azure VM trial as soon as it comes out of preview. In the meantime however, can someone please clarify the following?</p>
  
  <p>Currently users can access an Azure VM instance using a Remote Desktop Connection (RDC).  Is it possible however to 'lock down' the Azure VM instance so that only a specified IP address can connect via RDC?</p>
  
  <p>This would provide us with some extra security knowing only our fixed office IP could connect to our live data server.  Or is there a different approach?</p>