title: How to block access to Tomcat listening port, and allow localhost only?
body: <p>I have an application running on Tomcat and listening on port 8080. I made the redirect changes on the Apache level (httpd) to provide my users with the ability to only type <code>http://app</code> instead of <code>http://app:8080</code>.</p>
  
  <p>Now I want to <strong>block</strong> access completely to <code>http://app:8080</code>, so users won't be able to reach <code>http://app:8080</code>.</p>
  
  <p>How do I do that?</p>