Hi when access the server-status, I see that my server is working as a mpm-prefork, I would change it for mpm-worker, how to proceed? What PHP mode so that I use? I installed the server with the tutorial "The Perfect Server - Debian 8.4 Jessie (Apache2, BIND, Dovecot, ISPConfig 3.1)" in a xeon server with 8GB of memory.
It´s solved 1- stop apache with "service apache2 stop" command 2- install mpm-work with "apt-get install apache2-mpm-work" command 3- disable mpm-prefork module with "e2dismod mpm_prefork" command 4- enable mpm-work module with "a2enmod mpm_work" command 5- start apache with "service apache2 start" command then I checked the server-status and was ok. I did not find another way, I'm happy if anyone knows.