apache2_mpms options

event
An experimental variant of the standard worker MPM
itk
Allows to run each virtual host under a separate uid and gid
peruser
Peruser is a working implementation of the perchild MPM allowing to run each apache child process as its own user and group, each handling its own set of virtual hosts
prefork
Implements a non-threaded, pre-forking web server
worker
Multi-Processing Module implementing a hybrid multi-threaded multi-process web server