Http request performed in finalize_kerberos_acquisition doesn't use CA certificate/certificate store with full certificate chain of IPA server. So it might happen that in case that IPA is installed with externally signed CA certificate, the call can fail because of certificate validation and e.g. prevent session acquisition. If it will fail for sure is not known - the use case was not discovered, but it is faster and safer to fix preemptively. https://pagure.io/freeipa/issue/6876 Reviewed-By: Martin Basti <mbasti@redhat.com>