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PDiddyHix

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Federating Active Directory Forests for Exchange, SharePoint, and OCS

I have multiple sites across my company that are not connected via a single network and have standalone AD Forest's in place.  I would like to setup a hosted Exchange / SharePoint / OCS solution for all the sites allowing the users to use their current AD credentials.  I also would like to avoid consolidating the domains into 1 forest.  Can I use AD Federation Services to do this?  Are there any drawbacks to this in Exchange, SharePoint, or OCS?  I would like to have a single GAL if possible.
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Abhay Pujari
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Before deciding have a look at this http://technet.microsoft.com/en-us/library/cc772128.aspx. I too have a doubt in mind and can not suggest you to go for ADFS.
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PDiddyHix

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I have seen that but it is not clear enough to me either way.  Any other thoughts?
Could I accomplish this through setting up Forrest Trusts?
Are you going to setup two different forests? Why do you think you need forest trusts?
The Forests are already setup...and they are on different networks...
Then yes, you can go for forest trust.
Can you do that over the internet of do I need to create a private network?  What would the security ramifaction be?
I think You need a VPN. But anyway I will crosscheck this and update you the same.
Any update?
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Abhay Pujari
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