title: how to change ipv6 to ipv4?
body: <p>i've problem with change ipv6 to ipv4 when i used this command </p>
  
  <pre><code>lsof -i :6702 
  </code></pre>
  
  <p>got this </p>
  
  <pre><code>java 3143 st 71u IPv6 12097 0t0 TCP *:6702 (LISTEN)
  </code></pre>
  
  <p>as you can see it using <code>ipv6</code> and i want to change it to <code>ipv4</code> </p>
  
  <p>i used the </p>
  
  <pre><code>supervisor.childopts: "-Djava.net.preferIPv4Stack=true"
  </code></pre>
  
  <p>in storm.yaml </p>
  
  <p>summary in storm ui read the change but when i used </p>
  
  <p>lsof -i :6702 didn't read it ! still using ipv6 ! </p>