I currently have servers in DMZ3 that allow SSL VPN connection to them. The SSL authenication is to the DMZ only.
I want to allow AD authenication from DMZ3 to AD directory domain that is located in the inside network.
What ports need to be open to allow this to happen? I have read that this type of authenication is a security nightmare because of the number of ports that must be open for this to work correctly. There is no domain controller on DMZ3 so the AD authenication traffic must pass to the inside network.
Another complication is that there are over 100 domain controllers that could answer the authenication request located on several different networks.