Domain Split

Greeting Experts,

Currently, I have 1 domain, 3 servers( 1 File server(DC), 1 Misc/bb/licencing(DC), 1 Exchange) Supposedly they are all under A.com

Now I need to split that domain in two A.com and B.com. However I want both A.com and B.com users to be able to access file server, split licencing, and utilize exchange service(xx@A.com yy@B.com)

Is it possible? If so, how? If not, are there anyway around it by making minimum purchase or a compromise. Thanks.
WangstaaAsked:
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Mike KlineCommented:
You can't host two domains on one server, only 1 AD instance per server,  if you have a Hyper-V or VMware server then you can host multiple domains...things get more complicated there.

Thanks

Mike
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Mike KlineCommented:
You would need to create a new domain and then migrate the objects you wont in domain B to that domain.  You can use Microsoft's active directory migration tool.

You can establish a trust between the domains for resource sharing.

I'd personally try to stay with the single domain model if you can.  That is an optimal design.

I'll let the exchange guys jump in for @A.com/@B.com

Thanks

Mike
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Lee W, MVPTechnology and Business Process AdvisorCommented:
You can run two DNS domains but not two Active directory domains.

You can buy another server, setup a new domain and create a trust between the two.
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WangstaaAuthor Commented:
So I can host two different domains under one server? What about licencing issues (Office, CAD...), will a trust resolve that.
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Lee W, MVPTechnology and Business Process AdvisorCommented:
What licensing issues?  You buy the proper licenses.  It's also important to note that Volume Licenses DIE with the company they are sold to and cannot be resold.  If the company has 20 people and bought 20 Volume License copies of office, then decides to split into two separate companies of 10 people each, you need to buy 10 more copies of Office for that new company and the old company has 10 spare that can ONLY be used for them.
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WangstaaAuthor Commented:
I never said the company is being split, there are many reasons to split a domain.

Anyways, licencing legality aside. can one licencing server serve two or more domains.
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