[CentOS] OT Clarkconnect Firewall/Router updates

Hello All,

   I have several Centos boxes I am very pleased with. I run
another box with the Clarkconnect distribution as a dedicated
firewall. Since the Clarkconnect distro is built from Centos
I was wondering if anyone knows what needs to be installed
on this box so that I could use yum to keep it up to date?
Apologies if this is not the proper venue for this question.

-Arkwolf