Tarantella software uses the standard LDAP version 3 protocol.
You should be able to use the LDAP login authority and the LDAP search methods for web server authentication with any LDAPv3-compliant directory server. We have tested, and support, this functionality on the following directory servers:
Other directory servers may work, but are not currently supported.
Directory Services Integration (the LDAP webtop search functionality) is supported only with Sun ONE Directory Server 4.1+. Again, other directory servers may work, but are not currently supported.