I've just activated certificates on my radosgw, and the manager is unable to talk to it. On the manager logs, I see: 2021-04-23T15:05:03.917+0200 7f4109309700 0 [dashboard ERROR urllib3.connection] Certificate did not match expected hostname: XXX Certificate: {...)} 2021-04-23T15:05:03.918+0200 7f4109309700 0 [dashboard ERROR exception] Internal Server Error Traceback (most recent call last): File "/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen chunked=chunked) File "/lib/python3.6/site-packages/urllib3/connectionpool.py", line 343, in _make_request self._validate_conn(conn) File "/lib/python3.6/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn conn.connect() File "/lib/python3.6/site-packages/urllib3/connection.py", line 364, in connect _match_hostname(cert, self.assert_hostname or server_hostname) File "/lib/python3.6/site-packages/urllib3/connection.py", line 374, in _match_hostname match_hostname(cert, asserted_hostname) File "/lib64/python3.6/ssl.py", line 287, in match_hostname % (hostname, ', '.join(map(repr, dnsnames)))) ssl.CertificateError: hostname 'SOMEIP' doesn't match either of 'XXX' So the manager is communicating to the gateway using the IP. So I configured the names in ceph.conf: [client.radosgw.ID] rgw_data = /data/ceph/data/radosgw/$cluster.ID log_file = /data/ceph/logs/$cluster-radosgw.ID.log rgw_frontends = "beast ssl_endpoint=0.0.0.0:443 ssl_certificate=/data/ceph/conf/ceph.crt ssl_private_key=/data/ceph/conf/ceph.key" rgw_dns_name = XXX But it's seems that the line rgw_dns_name is not used by the manager. Where does it resolve the name to use for the connection ?