I'm running Samba 4.0.9 as a domain controller in a Windows 2008 R2 functional level single domain forest with a Windows 2012 domain controller. I am using Bind 9.9.3-P2 as the DNS backend with dlz_bind9_9.so driver. When I add my Samba DC to the DNS Manager snap-in, my main domain.com zone has a red X and I cannot expand it. The _msdcs.domain.com zone seems to be ok. Also, one of my reverse dns zones does not appear in the list at all. When I refresh the domain.com zone, I see the following messages in /var/log/messages: Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.328302, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_2.7.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.340028, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_2.8.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.350979, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_26.4.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.358449, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_15.4.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.362998, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_17.3.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.366876, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_5.7.prs Sep 8 22:56:38 server smbd[17013]: [2013/09/08 22:56:38.370637, 0, pid=17013, effective(0, 100), real(0, 0), class=rpc_srv] ../source3/rpc_server/srv_pipe.c:88(dump_pdu_region) Sep 8 22:56:38 server smbd[17013]: created /tmp/out_\winreg_5.8.prs Sep 8 22:56:41 server samba[26750]: [2013/09/08 22:56:41.778933, 0, pid=26750, effective(0, 0), real(0, 0)] ../source4/rpc_server/dnsserver/dcerpc_dnsserver.c:1068(dnsserver_query_zone) Sep 8 22:56:41 server samba[26750]: dnsserver: Invalid zone operation IsSigned DnssrvQuery2: struct DnssrvQuery2 Sep 8 22:56:41 server samba[26750]: out: struct DnssrvQuery2 Sep 8 22:56:41 server samba[26750]: pdwTypeId : * Sep 8 22:56:41 server samba[26750]: pdwTypeId : DNSSRV_TYPEID_NULL (0) Sep 8 22:56:41 server samba[26750]: ppData : * Sep 8 22:56:41 server samba[26750]: ppData : union DNSSRV_RPC_UNION(case 0) Sep 8 22:56:41 server samba[26750]: Null : NULL Sep 8 22:56:41 server samba[26750]: result : WERR_DNS_ERROR_INVALID_PROPERTY Sep 8 22:56:41 server samba[26750]: [2013/09/08 22:56:41.779974, 0, pid=26750, effective(0, 0), real(0, 0)] ../source4/rpc_server/dnsserver/dcerpc_dnsserver.c:1068(dnsserver_query_zone) Sep 8 22:56:41 server samba[26750]: dnsserver: Invalid zone operation IsSigned DnssrvQuery2: struct DnssrvQuery2 Sep 8 22:56:41 server samba[26750]: out: struct DnssrvQuery2 Sep 8 22:56:41 server samba[26750]: pdwTypeId : * Sep 8 22:56:41 server samba[26750]: pdwTypeId : DNSSRV_TYPEID_NULL (0) Sep 8 22:56:41 server samba[26750]: ppData : * Sep 8 22:56:41 server samba[26750]: ppData : union DNSSRV_RPC_UNION(case 0) Sep 8 22:56:41 server samba[26750]: Null : NULL Sep 8 22:56:41 server samba[26750]: result : WERR_DNS_ERROR_INVALID_PROPERTY Sep 8 22:56:42 server samba[26750]: [2013/09/08 22:56:42.887393, 0, pid=26750, effective(0, 0), real(0, 0)] ../source4/rpc_server/dnsserver/dcerpc_dnsserver.c:1068(dnsserver_query_zone) Sep 8 22:56:42 server samba[26750]: dnsserver: Invalid zone operation IsSigned DnssrvQuery2: struct DnssrvQuery2 Sep 8 22:56:42 server samba[26750]: out: struct DnssrvQuery2 Sep 8 22:56:42 server samba[26750]: pdwTypeId : * Sep 8 22:56:42 server samba[26750]: pdwTypeId : DNSSRV_TYPEID_NULL (0) Sep 8 22:56:42 server samba[26750]: ppData : * Sep 8 22:56:42 server samba[26750]: ppData : union DNSSRV_RPC_UNION(case 0) Sep 8 22:56:42 server samba[26750]: Null : NULL Sep 8 22:56:42 server samba[26750]: result : WERR_DNS_ERROR_INVALID_PROPERTY Sep 8 22:56:42 server samba[26750]: [2013/09/08 22:56:42.938675, 0, pid=26750, effective(0, 0), real(0, 0)] ../source4/rpc_server/dnsserver/dnsdata.c:354(dnsp_to_dns_copy) Sep 8 22:56:42 server samba[26750]: dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49ndr_push_error(2): Bad switch value 49 at default/librpc/gen_ndr/ndr_dnsserver.c:544 Sep 8 22:56:43 server samba[26750]: [2013/09/08 22:56:43.112016, 0, pid=26750, effective(0, 0), real(0, 0)] ../source4/rpc_server/dnsserver/dnsdata.c:354(dnsp_to_dns_copy) Sep 8 22:56:43 server samba[26750]: dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49dnsserver: Found Unhandled DNS record type=49ndr_push_error(2): Bad switch value 49 at default/librpc/gen_ndr/ndr_dnsserver.c:544 Anyone have any ideas? Thanks, Pete