I'm bringing a new Windows 2012 R2 Domain Controller online. Its very well documented that a DC should NOT have multiple network interfaces. My DC will also host DNS. I'd like to configure forwarders on the DNS server but without an external network interface this would never work. The enabled Internal network interface is on a private network and does not have internet access. Am I missing something?
The DC has two physical network interfaces (typically named External and Internal) and I've disabled the External interface based on best practices. The External interface would be used for forwarding DNS requests.
Any help would be greatly appreciated.