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@ Reda Sabbouri<br />
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They Are Server 2012 R2. I believe we have trust relationship and replication after prompting the DC2 as a domain controller automatically. Please correct me if I am wrong.<br />
<br />
Thanks
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@ Reda Sabbouri

They Are Server 2012 R2. I believe we have trust relationship and replication after prompting the DC2 as a domain controller automatically. Please correct me if I am wrong.

Thanks

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are you running as a domain administrator or an <b>enterprise administrator</b>
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are you running as a domain administrator or an enterprise administrator

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I have a forest domain called raminlab.com. I created a domain tree t this forest called goharlab.com. the domain controller for domain &nbsp;raminlab.com is DC1 and domain controller for goharlab.com is DC2. The issue is when I open Active directory users and computers on Dc1 ( raminlab.com) I am not able to change the domain to goharlab .com. it says domain can not be found. server is not operational. &nbsp;I am able to open DNS console for DC2 from DC1 but not able open DNS for DC1 from DC2. It says access is denied. &nbsp;I am also able change the domain to raminlab from Dc2. <br />
<br />
Any suggestion to fix this issue is apprecietd. <br />
<br />
Thanks<br />
<br />
Golchehr
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I have a forest domain called raminlab.com. I created a domain tree t this forest called goharlab.com. the domain controller for domain  raminlab.com is DC1 and domain controller for goharlab.com is DC2. The issue is when I open Active directory users and computers on Dc1 ( raminlab.com) I am not able to change the domain to goharlab .com. it says domain can not be found. server is not operational.  I am able to open DNS console for DC2 from DC1 but not able open DNS for DC1 from DC2. It says access is denied.  I am also able change the domain to raminlab from Dc2. 

Any suggestion to fix this issue is apprecietd. 

Thanks

Golchehr

Forest and doamin tree

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.

Active Directory

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.

A domain controller is a server that responds to security authentication requests within a computer network domain. It is a network server that is responsible for allowing host access to domain resources. It authenticates users, stores user account information and enforces security policy for a domain