I plan to setup a multi-server installation with Samba PDC.
1. Separate Zimbra LDAP server in machine A
2. Separate the rest of Zimbra in machine B

Now, the confusion:
The Zimbra Samba PDC howto states that we must install the Samba admin UI in the server that runs mailbox service, in this case machine B.
I don't really understand the next step: when we want to add new account from Zimbra UI, on which machine should we use the web UI? Machine A or B?

Thank you very much.