Sahrepoint 2007 - 2 domains - only one access

Hi experts

I have a sharepoint farm running in a domain A

recently  the user's computer have been migrated to a new domain B (trusted domain in the same forest).
so, the users have to access to their computer with the domain B account and when try to access to a sharepoint's web have to put again with the credentials of domain A

now, my question there any way for single sign on? I would like the user only have to log in once, when starts his computer in the domain B.

thanks in advance.
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You have 2 options either:

1. Extend the application and make the new zone use the new domain for authentication.
2. ADFS Trust between the 2 domains
jmatarranzAuthor Commented:
what do you recomend me as more easier and with less impact in a productive enviroment?
Rainer JeschorCommented:
as you use MOSS 2007, there might be no ADFS support.
But what you can do is simply running STSADM command:
STSADM -o migrateuser -oldlogin olddomain\userx -newlogin newdomain\userx

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jmatarranzAuthor Commented:

in this article seems that ADFS is compatible with sharepoint 2007, isn't it?

with STSADM we would have only 1 domain login, wouldn't it? we want to mantain the 2 login domains but integrating with only the windows login.
oldlogin command will not work, it is not a situation where the User and the SharePoint had been moved to a new domain, just the user had been moved, so how will User in domain B authenticate with SharePoint in domain A.

The simplest in my view is:

Extend the application and make the new zone use the new domain for authentication. Straight forward approach
Rainer JeschorCommented:
@dipopo: STSADM migrateuser should work as jmatarranz mentioned that they have a trust, hence both domains should be able to be resolved and authenticated.
And by simply creating a new web app with new domain authentication means that each and every permission configuration has to be done again / twice.

@jmatarranz: you are right - ADFS is possible with MOSS 2007.
In regards to the users: with STSADM migrateuser you will simply exchange the user identities, so that the users can / have to use their new domain logins to logon to your SharePoint site, but their old domain accounts still exist in AD.

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Justin SmithSr. System EngineerCommented:
Disregard all comments except for Rainer's.  The migrateuser command is what you want - that is unless you WANT users to have two distinct logins.  If you do not, then migrate the users, which is essentially changing their login names in SharePoint.
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