We are running a relatively new installation of Zimbra. When it was installed, the standard LDAP port 389 was chosen for the slapd instance in which Zimbra stores its schema. Now that it's running, we'd like to run our own instance of slapd on port 389.

Is there an easy way to reconfigure Zimbra's LDAP port after an install?

If we can coax Zimbra to use a non-standard LDAP port "after the fact", we'll then reconfigure "Account Authentication" as described here: http://www.zimbra.com/docs/os/latest...1.html#1036410
(External LDAP and External Active Directory Authentication Mechanism)