title: Can Socket.io listen on multiple ports?
body: <p>Is it possible for socket.io to listen on multiple ports in one server?</p>
  
  <p><strong>Background</strong> - I need to satisfy two problems:</p>
  
  <p>1.Some cooperate &amp; other closed networks block all traffic which does not use port 80. </p>
  
  <p>2.Some anti viruses block websocket traffic on port 80. Port 4000 is the safest port to use.</p>
  
  <p>I therefore need to my node server to be able to use port 80 and 4000 simultaneously. Has anyone experienced similar problems? How did you solve it?</p>
  
  <p>Thank you.</p>