To apply group policies to Mac computers, you can link an existing group policy object (GPO) that you are using for a Windows or UNIX computer, or create a new GPO to link to a domain or OU that contains your Mac computers and users. In general, it is recommended that you create an OU specifically for your Mac computers and link a new GPO to that OU. However, there is no problem adding the Mac group policies to an existing GPO and configuring policies for Mac computers; Mac OS X-specific policies that are applied to Windows or UNIX computers are simply ignored.
You apply GPOs to Mac users the same way; link the GPO to an OU containing the users. Group policies are only applied to users and computers in the organizational unit (OU) linked to the Group Policy object (GPO) and any of the child OUs. If your users and computers are in different OUs (which is common), Centrify recommends using user Group Policy loopback processing to make sure user policies are applied to everyone who logs on to a Mac. This is a standard Microsoft Group Policy that applies to every user to the computer. See Setting user-based policies for more information about applying user policies.