title: Nginx not found, but server display "504 Gateway Time-out" (WHM/cpanel)
body: <p>Server working with WHM/Cpanel, and when long time php scripts executing, server display "504 Gateway Time-out".</p>
  
  <p>But I can't find any nginx files on server...
  Tried:</p>
  
  <p>find / -name nginx.conf</p>
  
  <p>whereis nginx</p>
  
  <p>ps -lA | awk '$12 == "?" {print $4, $14}'</p>
  
  <p>nginx -V</p>
  
  <p>OS: CentOS</p>
  
  <p>sites using cloudflare</p>