When a CA-less replica is installed, its IPA config file should be updated so that ca_host points to nearest CA master and all certificate requests are forwarded to it. A subsequent installation of CA subsystem on the replica should clear this entry from the config so that all certificate requests are handled by freshly installed local CA. https://fedorahosted.org/freeipa/ticket/5506 Reviewed-By: Martin Basti <mbasti@redhat.com>