title: Increase max connection to node.js/socket.io
body: <p>I noticed that the maximum concurrent connections to <code>node.js</code> with <code>socket.io</code> is about 1000 connections.</p>
  
  <p>Is it possible to increase that number with <code>ulimit</code> command on linux? setting the <code>ulimit</code> to 65536 can solve my problem?</p>