In this section of the Open Mic Webcast ("Securing Domino LDAP") presented in June of 2015, Brandon Kutsch describes the Basic Directory Assistance setup as well as SSL Secure Directory Assistance setup.  The video wraps up with some troubleshooting guides and additional resources.

More information about this Open Mic, including the audio recording, presentation slides and additional videos can be found at the Webcast document:  http://www.ibm.com/support/docview.wss?uid=swg27045591