[Freeipa-users] Essential Ports

Hi, https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/... states a list of required ports but is a little vague. Besides NTP and DNS which ports are really essential to be open? And in which direction? TCP/UDP? - on an IPA server (all of the listed ports in both directions?) - on an IPA client Cheers, Ronald