In the Admin Console, use the LDAP section under Services to configure the following properties of the LDAP server:
The port used by the directory server daemon, dsservd.
Whether alias entries are to be dereferenced when a bind request is received.
Search limits (number of entries and time).
The default directory server for referrals, and the LDAP port number of the referral server. Give the name of a server that holds knowledge information on subtrees not managed by the current server. This should be a server that holds a broader view of the same tree, to allow searches in the current tree to be extended through the referral. To define referrals to different trees, use referral entries.