OS X Server: Providing Service Access to Users in External Directories
In OS X Server (Mountain Lion), when your server is connected to an external directory system, users must be given explicit access to each service.
If your server is connected to an external directory system, such as Active Directory, Open Directory, or another LDAP-based directory, users in the external directory do not have automatic access to your services. You must explicitly give users or groups access to these services.
Select a user or group in Server app. This may an external user, an external group, or a local group that contains external users.
From the Activity (gear) menu, choose "Edit Access to Services...".
Check the box to grant access to the desired services, then click OK.
Local users and local network users on the server automatically have access to every active service on the server. You can use Edit Access to Services to restrict service access for these users.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners.