Renaming A Domain Controller

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Windows Server 2003 allows you to rename domain controllers running MCITP certification exams Windows Server 2003. You might want to rename a domain controller to
Use an existing domain controller to serve a large number of clients whose inaccessibility could overload the remaining domain controllers
Restructure your network for organizational and business needs
Make management and administrative control easier Only Domain Admins have sufficient permissions to rename a domain controller.

You can rename a domain controller only if the domain functional level of the domain to which the domain controller is joined is set to Windows Server 2003.

When a domain controller is renamed, the new name is automatically updated to DNS and Active Directory. Once the new name propagates to DNS and Active Directory, clients are then capable of locating and authenticating to the renamed domain controller. DNS and Active Directory replication latency may cause a temporary inability of clients to locate or authenticate to the renamed domain controller. The ...
... length of time this takes depends on specifics of the network and the replication topology of the organization. This might be acceptable online MCITP certification for clients who try to locate and authenticate to a particular domain controller since other domain controllers should be available to process the authentication request.
If the new domain controller name contains a primary DNS suffix different from the name of the domain to which it is joined, the domain should be properly configured for the new primary DNS suffix. The new primary DNS suffix is written to the dnsHostName attribute of the computer account in Active Directory.

You rename a domain controller by using the Netdom.exe: Windows Domain Manager command-line tool, included with the Windows Support Tools on the Windows Server 2003 Setup CD-ROM. You use the Netdom Computername command to manage the primary and alternate names for a computer.

You can rename the domains in a forest only if all domain controllers in the forest are running Windows Server 2003, all domain functional levels in the forest have been raised to Windows Server 2003, and the forest functional level has been raised to Windows Server 2003.
You use the domain rename utility (Rendom.exe) to rename or restructure a domain.
You can rename a domain controller only if the functional level of the domain to which the domain controller is joined is set to Windows Server 2003.
You rename a domain controller by using the Netdom.exe: Windows Domain Manager command-line tool, included with the Windows Support Tools on the
Windows Server 2003 Setup free practice tests CD-ROM. You use the Netdom Computername command to manage the primary and alternate names for a computer.