Feels weird to be on this side of the question.
I have users who need to connect to a vendor via both External and internal IP addresses. Let me explain.
Lets say that your client is microsoft (not really). I need to have the user resolve an ip address for web1.microsoft.com but this address is a private address (not in Microsoft's external DNS) that needs to go through a specific VPN connection. The user ALSO needs to connect to www.microsoft.com
via the internet.
I have the routing correct. The way we have been doing this in the past is to user local "host" files. We are getting too big to manage these files. I need to get them on DNS and manage them from there.
I tried added a microsoft.com primary zone with a forwarder to 18.104.22.168 (google external DNS). The web1.microsoft.com address works but I then can not resolve www.microsoft.com
I am running DNS on Windows 2008 R2 domain controllers.
Thanks for the help.