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Looks like that might have been the issue. I checked DNS and the conditional zone was present on both servers, but it wouldn't work. Yet this morning both servers can access the other domain and the trust is fine
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Looks like that might have been the issue. I checked DNS and the conditional zone was present on both servers, but it wouldn't work. Yet this morning both servers can access the other domain and the trust is fine

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Hi Experts,<br />
<br />
I hope you can help me with an issue we are having. <br />
<br />
We are attempting to setup a domain trust between two domains. I have set up conditional forwarding for both domains, which validate successfully <br />
<br />
However the domain trust only validates at Domain B's end. Domain A fails every time<br />
<br />
Domain A has two AD servers, one in one office, the other in another and local to domain B<br />
<br />
Upon further investigate i found that the AD server for domain A that is local to B can resolve DNS queries, but the other cannot. <br />
<br />
Since the other is the primary and holds most of the roles, i believe this is why validation fails at domain A's end<br />
<br />
I've checked the firewalls at both sites but i cant see anything being blocked and i can even &nbsp;ping the server ips
</div>
</div>


Hi Experts,

I hope you can help me with an issue we are having. 

We are attempting to setup a domain trust between two domains. I have set up conditional forwarding for both domains, which validate successfully 

However the domain trust only validates at Domain B's end. Domain A fails every time

Domain A has two AD servers, one in one office, the other in another and local to domain B

Upon further investigate i found that the AD server for domain A that is local to B can resolve DNS queries, but the other cannot. 

Since the other is the primary and holds most of the roles, i believe this is why validation fails at domain A's end

I've checked the firewalls at both sites but i cant see anything being blocked and i can even  ping the server ips

Domain Trusts &amp; DNS Conditional Forwarding

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 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Domain Trusts &amp; DNS Conditional Forwarding

Domain Trusts & DNS Conditional Forwarding