title: Opening port 3000 EC2 Amazon web services
body: <p>I am trying to use nodejs and socket.io to deliver a webapp, which use websocket on port 3000.</p>
  
  <p>I have opened port 3000 on my EC2 instance in my management console by adding the inbound TCP rule to the relevant security group, however I still can't access it via public dns on my browser.</p>
  
  <p>sudo netstat -tulpn doesn't show it as an open port.</p>
  
  <p>What am I missing? Is there some service I need to restart or a command line I need to push to get it running?</p>
  
  <p>Thanks</p>