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I need to take W2K child domain completely offline - What is the best way

Posted on 2009-05-15
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Last Modified: 2013-12-05
I have a Parent DNS root domain and two DNS child domains.  Due to downsizing, one of my child domains needs removing completely and permanently.  It has two domain controllers, is a member of a site for DFS purposes and holds DNS/DHCP roles.  Can I simply remove it from its site, demote the two domain controllers and remove its infrastructure roles?  Will these completely remove the domain from my domain list and take it officially offline?  What is the best way?  I have an exchange server at that location.
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Question by:chitchcock
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qf3l3k earned 500 total points
ID: 24405541
Steps which I would recommend:
 - Migrate all users and mailboxes to another domain (if you have any users to migrate in child domain)
 - Migrate all computer accounts to another domain (if any computers or servers connected)
 - Migrate any potential SMTP domains for messaging to another Exchange server
 - Re-create DHCP scope on another DHCP server and stop DHCP services on child domain server
 - Make sure that all devices using DNS are re-pointed to diferent DNS server
 - Check DFS if is hosted in child doman an dmove it to different domain
 - Then simply demote Domain Controllers. During demote procedure all forest-wide roles will be transferred automaticaly (if any present in child domain) and domain-wide roles will be removed (as they are specifix to child domain).

So, steps are fairly straightforward and should be no problem with demoting child domain once you will migrate all resources from that domain.
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by:chitchcock
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Great, thanks for the assistance
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