title: tcpdump option to find process initiate communication
body: <p>I am using the Linux command line and when I run the following command:</p>
  
  <pre><code> tcpdump -n dst host destsitename
   tcpdump -n dst host stackoverflow.com
  </code></pre>
  
  <p>to see if my server as source talk to this domain, how I can find out which process doing the communication from my server as source. </p>
  
  <p>My question is which option should I use in "tcpdump".</p>