follow this tutorial:
http://www.juliosblog.com/freeipa-server-on-centos-7/
and this has a good hint:
‘ipactl start’,
https://lists.fedorahosted.org/archives/list/freeipa-users@lists.fedorahosted.org/thread/VGASOOU56G2BVWLT6TNFNIBS3BPQYGRA/
this one is ok too
https://www.digitalocean.com/community/tutorials/how-to-set-up-centralized-linux-authentication-with-freeipa-on-centos-7