SlackBuildsOrg/network/mod_ruid2

mod_ruid2 is a suexec module for apache which takes advantage of
POSIX.1e capabilities to increase performance.

You'll need to add the following line to your /etc/httpd/httpd.conf
file:

  Include /etc/httpd/extra/mod_ruid2.conf

Also, make sure you edit and understand mod_ruid2 configuration
completly before using it.