I am running PHP Version 5.5.9 and apache 2.4 web server on ubuntu 14.04.5 LTS and latest version of ISPConfig. I ran ps_mem script to find core memory usage and it shows that I am using php-cgi, php5-fpm and php5-cgi all at the same time. phpinfo() function shows Server API as CGI/FastCGI and not FPM/FastCGI. I only want to use PHP-FPM. How can I do that? I used The Perfect Server - Ubuntu 14.04 (Apache2, PHP, MySQL, PureFTPD, BIND, Dovecot, ISPConfig 3) guide for server setup.