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We are in the process of moving from a government active directory domain to a one of our own. Our domain, DNS, DHCP is a brand new install of Windows Server 2012 R2 at the 2012 R2 forest level. After moving to our own domain, we will still need to access county servers and resources. <br />
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The county domain is on a different network in which our SonicWALL is currently handling the routing to. There are a few application servers on the county network that our old DNS did not resolve so we have previously been creating manual entries on the hosts file on each domain client. <br />
<br />
Now that we are managing our own DNS, I was wondering the best way to go about resolving this breakdown when trying to reach these particular county servers without touching the host file in the future. <br />
<br />
Is this an issue on the county end only? Is there something I need to do to my own DNS server for my domain clients? Do I update the hosts file on the DNS server and it will then tell my DNS clients?
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We are in the process of moving from a government active directory domain to a one of our own. Our domain, DNS, DHCP is a brand new install of Windows Server 2012 R2 at the 2012 R2 forest level. After moving to our own domain, we will still need to access county servers and resources. 

The county domain is on a different network in which our SonicWALL is currently handling the routing to. There are a few application servers on the county network that our old DNS did not resolve so we have previously been creating manual entries on the hosts file on each domain client. 

Now that we are managing our own DNS, I was wondering the best way to go about resolving this breakdown when trying to reach these particular county servers without touching the host file in the future. 

Is this an issue on the county end only? Is there something I need to do to my own DNS server for my domain clients? Do I update the hosts file on the DNS server and it will then tell my DNS clients?

Use DNS to resolve HOSTS file entries on another network

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.