- Launch System Preferences.app from the Applications folder and select the Users & Groups preference pane (Figure A).
Figure A
- Select Login Options and click the padlock to authenticate as an administrator (Figure B).
Figure B
- Next, click the Edit… button to display the list of directory servers the computer is bound to.
- Once bound, the list should contain the Active Directory domain (Figure C).
Figure C
- Click the plus sign [+] to add another directory server. This time, enter the domain host name (or IP address) of the OS X Server hosting the Open Directory domain, and click the OK button to add it (Figure D).
Figure D
- Prior to establishing the connection to the OD server, you’ll be prompted to accept the trust certificate for the server you’re binding to. This occurs when a self-signed certificate is used (by default) instead of a 3rd-party certificate. Click Trust to proceed (Figure E).
Figure E
- Click Continue if you receive a prompt while attempting to establish an SSL connection with the server (Figure F).
Figure F
- The directory list should now have an entry created for the Open Directory domain in addition to the Active Directory domain (Figure G).
Figure G
- Click OK to return to the Users & Groups preference pane, and you’ll notice the word Multiple next to Network Account Server. This indicates the OS X client is bound to multiple directory services, and the green bulb next to each represents an established connection (Figure H).
Figure H
The Active Directory and Open Directory domains are setup, and the OS X client has been bound to both services, receiving DNS and user authentication services from AD and managing settings and configuration from OD.