title: Have maven run jetty on port 80 jetty in Linux
body: <p>I don't know what's wrong with Jetty. My apache2 (run as a service) works fine on my Ubuntu, but Jetty always raise Permission Denied.</p>
  
  <p>I have come through some search result but ---I'm confused--- </p>
  
  <p>Would any one please provide an easy follow through that can allow me to invoke <code>mvn jetty:run</code> where jetty was set up to run on port 80?</p>