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Great answer. &nbsp;I had forgotten about single-label domains. &nbsp;What about the 2012 DC's. &nbsp;Will there be any issue with those? &nbsp;The renaming article provided above only discusses 2003 and 2008.
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Great answer.  I had forgotten about single-label domains.  What about the 2012 DC's.  Will there be any issue with those?  The renaming article provided above only discusses 2003 and 2008.

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No, there won't be any issues with them. The domain rename process is the same in later versions.
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No, there won't be any issues with them. The domain rename process is the same in later versions.

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We are in the process of some major upgrades. &nbsp;One of which is upgrading AD and Exchange. &nbsp;Our current AD is 2003 native with 2 2012 R2 DCs. &nbsp;Exchange is 2003 running on a 2000 server. &nbsp;One of the tasks we need to accomplish is raising the functional level of the domain. &nbsp;This concerns me because, when you look at the AD domain in DNS, it has no suffix. &nbsp;For example, instead of it looking like abc.local, it is simply abc with no .local, .com, .net or anything.<br />
<br />
How will this impact Exchange 2010 and AD 2012 R2. &nbsp;Has anyone seen this? &nbsp;It looks like a previous upgrade went awry.<br />
<br />
Thanks in advance for your thoughts.
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We are in the process of some major upgrades.  One of which is upgrading AD and Exchange.  Our current AD is 2003 native with 2 2012 R2 DCs.  Exchange is 2003 running on a 2000 server.  One of the tasks we need to accomplish is raising the functional level of the domain.  This concerns me because, when you look at the AD domain in DNS, it has no suffix.  For example, instead of it looking like abc.local, it is simply abc with no .local, .com, .net or anything.

How will this impact Exchange 2010 and AD 2012 R2.  Has anyone seen this?  It looks like a previous upgrade went awry.

Thanks in advance for your thoughts.

AD Domain has no DNS Suffix

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

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.

Windows Server 2012

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).