Active Directory Domain Rename Tools (domainrename.exe) provide a security enhanced and supported method to rename one or more domains in an Active Directory forest. The DNS name and NetBios name of a domain can be changed using the Domain Rename Tools.
These tools are for use with Windows 2003 Server only. The Rename Tools is not supported in an Active Directory forest that has any version of Exchange Server prior to 2003 SP1.
Using the Domain Rename Tools you can change not only the name of a domain but you can change the structure of the domain hierarchy such that the parent of a domain can be changed.
A good example of this is a situation involving company acquisition, mergers or name changes. Using the Active Directory Domain Rename Tools you can make several kinds of changes to an existing Windows Server 2003 forest; including:
• Renaming without repositioning any domain in the forest structure
• Create a new domain tree structure by repositioning domains with a tree
• Create new tree
It is important to note that the goal of the domain rename functionality provided for a Windows Server 2003 forest is to ensure that there is a supported method to rename domains in a deployed Active Directory Forest. The intent is not to make a domain rename a routine operation.
The reason for this is the domain rename process is complex and requires a great deal of care in planning and execution. It can also be a time consuming process.
Microsoft has a couple of documents that give step by step instructions on the domain rename process. See link below.
Company: Microsoft
Website: http://technet.microsoft.com/en-us/windowsserver/bb405948.aspx
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