LDAP port change possible before install iRedMail?

==== Required information ====
- iRedMail version: 0.8.5
- Store mail accounts in which backend (LDAP):
- Linux/BSD distribution name and version: Ubuntu 12.04 LTS
- Related log if you're reporting an issue:
====

Hi Zhang,

Is that possible to change the LDAP listening port before running the iRedMail.sh installation script?

I changed it to 7389 in "openldap" of the "conf" folder and it seems to install without error, however, can't login to webmail or iredamin panel.

Thanks,
Marvel