Hi, i have problems with ldap external access. Zimbra work without problems but ldap not response, when run a nmap to localhost, show this:
[root@mail ~]# nmap localhost -PN

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2010-07-29 17:23 CLT
Interesting ports on localhost.localdomain (
Not shown: 1668 closed ports
22/tcp  open  ssh
25/tcp  open  smtp
53/tcp  open  domain
80/tcp  open  http
110/tcp open  pop3
143/tcp open  imap
443/tcp open  https
465/tcp open  smtps
587/tcp open  submission
953/tcp open  rndc
993/tcp open  imaps
995/tcp open  pop3s

Nmap finished: 1 IP address (1 host up) scanned in 0.088 seconds
and in iptables the port are open.

i need access to ldap directory for use zimbra when external login.

Sorry for my bad english.