LDAP server on Linux Redhat 6

I need to create an LDAP server Master/Slave configuration (Where, when the client updates, it updates the Master...and viceversa).

I've come across these 3 links:

http://wiki.openiam.com/pages/viewpage.action?pageId=7635198

http://www.server-world.info/en/note?os=CentOS_6&p=ldap
(this link has sublinks, -adding users -creating client -creating TSL)

and...
http://www.unixmen.com/setup-directory-serverldap-in-centos-6-4-rhel-6-4/

I'm thinking I need to follow the last one, since I'm running rhel 6.5. I'm not too familiar with 389. The first two install the standard openldap packages, but the last installs a 389 package

I am not wanting to integrate it (at this time) with active directory. I would just add users manually, to test that the LDAP seemless works across clients.

I'd like a suggestion on what link I should follow, and any experience and/or input you all have with 389.

Thanks for any information/advice