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I am migrating my organization from one domain to another. The old domain can be referred to as X, and the new domain is Y.

On domain X, I have created a VM that will act as a DC for domain Y.

Will creating the DC (and by extension, domain Y) on domain X cause any issues? Will these two domains conflict with each other if I don't initiate a trust relationship between the two?

HopelessN00b
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user218699
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    When you say on domain x do you mean on the same network? If so, then there shouldn't be any problem. Just make sure you don't have conflicting ip addresses or NetBIOS names. – joeqwerty Jul 24 '14 at 20:33
  • Correct, domain x and y will be on the same network. – user218699 Jul 24 '14 at 20:34

1 Answers1

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Will creating the DC (and by extension, domain Y) on domain X cause any issues?

You cannot have a domain controller for one domain as a member of a different domain. Domain controllers, in effect, are the domain for which they're on.

Will these two domains conflict with each other if I don't initiate a trust relationship between the two?

The domains will effectively not be able to talk to each other, unless and until you establish a trust relationship.

Frankly, these are pretty basic questions that you have, and if I were you, I'd lean on consultant, or a more senior colleague with relevant experience. With your level of knowledge, you're begging for a disaster trying to set this up (and do a migration) yourself.

At a very minimum, you need to educate yourself on Active Directory. You could start with the excellent thread by @MDMarra that we have here.

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HopelessN00b
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