Re:CentOS Linux 7.5 (1804) Released
by vetinari on Tuesday May 15, 2018 @09:42AM
(#17073829)
Redhat ships with 389 directory server for several years already (former Netscape Directory) and when you install FreeIPA, you will get 389 by default. I don't think FreeIPA even works with OpenLDAP.
openldap upstream suggest using these on CentOS / RHEL over the redhat packages, if operating the server components.