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What are the proper steps to take when renaming our interal facing domain

We are rolling out our new MPLS system to connect the multiple locations within our enterprise. Currently these locations are on different domains and our goal is to have one domain for all of our locations. We have created a new internal facing domain name to use across our enterprise. We would like to migrate our AD and all applicable settings to the new domain. Our server roles include DC, DHCP, DNS, Print Server, Exchange Server, multiple application servers and file servers across multiple locations. This work will be done on a weekend when production is at a near stand still.

1. Are there any special programs that I can run to make this as seamless as possible?

2.What are the proper steps to take when renaming my Global Catalog Server as well as the rest of my servers?

3. What are the proper steps to take in order for this to work?

Any help would be greatly appreciated! Thanks
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bsmiley00
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bsmiley00
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LauraEHunterMVPCommented:
Are you saying that you are running multiple separate Active Directory domains? if so, you cannot perform a rename in this scenario, you will need to perform a migration, whether an intra-forest migration (if all domains are in the same forest), or an inter-forest migration (if these are separate forests.)  You can perform this using the Active Directory Migration Tool (free download from Microsoft), or pony up for a paid tool such as the migration toolset from Quest.
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bsmiley00Author Commented:
Laura, we currently have two companies on two different AD domains i.e. comanyname1.com and companyname2.com. Companyname1.com has multiple locations throughout the state all on the same domain. Companyname2.com has multiple locations in another state on the same domain. Our goal is to change the domain name at all locations to Companyname3.com with a centralized DC controller and replicate our AD throughout our locations. Would the Active Directory Migration Tool be adequate for this change?
Thanks
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LauraEHunterMVPCommented:
You would need to establish a new domain called company3.com and migrate your existing 2 domains' resources into it - let's be clear that this is a migration and not a rename. ADMT is a free migration tool, the third-party tools are a bit more feature-rich but there's a cost involved.
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bsmiley00Author Commented:
Laura I forgot to mention our current set up involves two completely separate forest domains. I mentioned above "we currently have two companies on two different AD domains". This is correct but these AD domains are on separate forest.
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LauraEHunterMVPCommented:
Previous answer stands - you need to configure a new single-domain forest called company3 or whatever and migrate the resources from the 2 existing forests into it, using ADMT or a third-party tool of your choice.
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