I am creating a domain controller and need some advice on how to secure it. I have researched using IPSec to either block ports or block access to anyone not on the MSU network. I found about 10-15 ports that need to be open on a domain controller. (It will be very time consuming to make those rules) What are some of the methods to secure windows 2003 domain controllers? Thanks Andrew McCormack [log in to unmask]