Allow issuing certificates with IP addresses in subjectAltName
Allow issuing certificates with IP addresses in the subject
alternative name (SAN), if all of the following are true.
* One of the DNS names in the SAN resolves to the IP address
(possibly through a CNAME).
* All of the DNS entries in the resolution chain are managed by
this IPA instance.
* The IP address has a (correct) reverse DNS entry that is managed
by this IPA instance
https://pagure.io/freeipa/issue/7451
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>