Open Directory Active Directory users want to know Is there a method?

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Open Directory Active Directory users want to know Is there a method?
Or can I make the Active Directory users to share on the Open Directory.
My goal is to use our school Mac computers with SSO

Answer 1

If I understand your question correctly, using Active Directory with OSX, there are a few ways this can be accomplished.
One way is by joining each Mac directly to Active Directory. This doesn't take advantage of the additional managed preference available to OSX, but does allow AD users to authenticate on OSX. On each machine, one would open System Preferences > Accounts > Login Options > Click Join next to Network Account Server. Follow the prompts and provide the domain name of your Active Directory deployment to join the system.
Another method is to follow the steps above, but only after extending the Active Directory Schema to support the OSX-specific managed preferences. It's a mostly harmless operation and means that you'll have a single administration interface for both OSX and Windows systems. The AD Schema information is available from Apple Support, but may also be readily available on the Internet.
Because our Windows team preferred to not change our AD schema any more than we already had, we used a different method. We created an Open Directory Master on one of our OSX servers, then we joined it as a member server to Active Directory. Next, we join all of our OSX workstations and laptops as members to the Open Directory domain instead of to Active Directory.  This way, SSO still works.  New user accounts are added to Active Directory and all managed preferences for OSX can be managed through the native OSX Workgroup Manager tool.
I think there are some instructions in the User Management PDF (Mac OS X Server, User Management, Version 10.6 Snow Leopard) or in the Advanced Server Admin PDF (Mac OS X Server, Advanced Server Administration, Version 10.6 Snow Leopard) but not completely certain. This page might have the docs.