title: Difference in server port and websocket port in node.js chat application
body: <p>I am trying to create a multi room chat application in node.js using socket.io and express. I am confused between use of server port and websocket port. I understand server port is used by the client to connect to server. But not sure about use of websocket port.</p>
  
  <p>Thanks &amp; Regards..</p>