defaultSearchBase
The point in the LDAP DIT where the containers for RFC 2307- style naming services data live. This is the default used when individual container DNs do not specify a full search base. See nisplusLDAPobjectDN for more information.
nisplusLDAPbaseDomain
The default NIS+ domain name to use when NIS+ object specifications (see nisplusLDAPdatabaseIdMapping) are not fully qualified.