System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP)

Authentication and Security

The authentication method and, if appropriate for the method selected, the proxy user (bind distinguished name [DN]) and password (key or other shared secret) to be used between the rpc.nisd daemon and the LDAP server. See Security and Authentication for more information.

Optionally use SSL, and specify the location of the certificate file. See Using SSL for more information.