Linking 2 or more Active Directories on Server 2003, possible?

[treysha]

Hi,

I have a question on Active Directory (AD) on Windows 2003 Server.

If I run 2 or more offices, each running its own LAN on Windows 2003 Server, is it possible that I link the individual Active Directories to each other?
Purpose is so that the ADs of each LAN is in sync with the others, such that if a user account is created/updated in AD 1 (in Office 1), the same user account is created/updated in AD 2 (Office 2) and AD 3 (Office 3).

I hope I didn't make a mess of my question.

Any input is indeed valued, many thanks.
Edit/Delete Message

[Cyclonite]

Okay, I'm certainly not well versed in Windows networks, but I believe you'd need a domain controller in each office, both on the same domain. Beyond that, I'm not going to be much help. I know how to use the AD administration snap-ins, but I don't know how to configure. I'm sure someone will stop by with mroe info. =)

[kryyst]

How are the offices linked together? You can have a primary domain controller and a secondary domain controller and pass the active directory that way.

[QCH2002]

As far as I know, thewre can only be one AD... the other would have to be a child domain. I think...

[versello]

If you say you have two separate Active Directories, then you must mean you have two separate forests.

Yes, two separate forests can be linked together by creating a trust (http://technet2.microsoft.com/WindowsServer/en/Library/7929b0c4-efe1-409c-99e3-efe9815f426d1033.mspx)