How to allow LDAP port (389) on Endian Firewall.

I found, I could not load Address book data from my Zimbra server. I have knew LDAP service which I got Address book data from this service has used port number 389.

On earliest stage, I allowed port number 389 on TCP protocal only on my Endian Firewall. Why? I could not get data? I backed to search information about ALAP again and I found…

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