title: how to configure jetty to listen to multiple ports
body: <p>I just want to configure jetty to listen to more than one port. I don't want multiple instances nor multiple webapps, just one jetty, one webapp, but listening to 2 or more ports.</p>
  
  <p>The default way does not support multiple entries:</p>
  
  <pre><code>&lt;Set name="port"&gt;&lt;SystemProperty name="jetty.port" default="8080"/&gt;&lt;/Set&gt;
  </code></pre>
  
  <p>Thank you for your help!</p>