`Unregistered Authentication Agent for unix-process` when I restart Apache each time?
I had to reboot the box to fix this.
I'm sure there's a better solution, but in absence of that... kick it all over.
You can disable SELinux if systemwide security is non critical. Edit the config file found in /etc/selinux/ .Change status of SELINUX from enforcing to disabled. Save and reboot your server.