title: UFW Deny traffic by application
body: <p>I want to block all traffic thats produced from an application running as a service but only on <code>eth0</code>.</p>
  
  <p>My system runs Debian 8 and <code>ufw</code> as the firewall</p>
  
  <p>Is it possible to deny incoming and outgoing traffic trough an application and <code>eth0</code> but still accept it on <code>localhost</code>?</p>
  
  <p>I tried to use <code>ufw app list</code> but my application is not in the list.</p>
  
  <p>Thanks for each answer</p>