Hello, i have a samba4 ad domain with 5 domain controllers. Since 2-3 weeks, i have problems with kerberos, log.samba: [2012/11/16 16:21:11, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:21:12, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:21:12, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:21:14, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:21:24, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:21:24, 0] ../source4/dsdb/repl/drepl_out_helpers.c:829(dreplsrv_update_refs_done) UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for 0854286a-4fd6-42a8-bc79-4487b61c7733._msdcs.test.local CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:21:44, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 3 objects (0 linked attributes) for DC=test,DC=local [2012/11/16 16:21:53, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for DC=test,DC=local [2012/11/16 16:21:53, 0] ../source4/dsdb/repl/drepl_out_helpers.c:829(dreplsrv_update_refs_done) UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for 0854286a-4fd6-42a8-bc79-4487b61c7733._msdcs.test.local DC=test,DC=local [2012/11/16 16:23:49, 2] ../source4/libcli/dgram/dgramsocket.c:92(dgm_socket_recv) No mailslot handler for '?MAILSLOT?LANMAN' [2012/11/16 16:25:06, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Configuration,DC=test,DC=local [2012/11/16 16:25:19, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Configuration,DC=test,DC=local [2012/11/16 16:25:19, 0] ../source4/dsdb/repl/drepl_out_helpers.c:829(dreplsrv_update_refs_done) UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for 0854286a-4fd6-42a8-bc79-4487b61c7733._msdcs.test.local CN=Configuration,DC=test,DC=local [2012/11/16 16:26:01, 0] ../source4/librpc/rpc/dcerpc_util.c:660(dcerpc_pipe_auth_recv) Failed to bind to uuid e3514235-4b06-11d1-ab04-00c04fc2dcd2 for e3514235-4b06-11d1-ab04-00c04fc2dcd2 at ncacn_ip_tcp:da93641c-ad62-4a93-bf2d-5eae845237ab._msdcs.test.local[1024,seal,krb5] NT_STATUS_INVALID_PARAMETER [2012/11/16 16:26:01, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:26:11, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:26:12, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:26:13, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:26:13, 0] ../source4/dsdb/repl/drepl_out_helpers.c:829(dreplsrv_update_refs_done) UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for 0854286a-4fd6-42a8-bc79-4487b61c7733._msdcs.test.local CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:26:14, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:26:49, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for CN=Schema,CN=Configuration,DC=test,DC=local [2012/11/16 16:26:50, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for DC=test,DC=local [2012/11/16 16:26:51, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:26:56, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:27:01, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:27:02, 2] ../source4/dsdb/repl/replicated_objects.c:779(dsdb_replicated_objects_commit) Replicated 0 objects (0 linked attributes) for DC=test,DC=local [2012/11/16 16:27:02, 0] ../source4/dsdb/repl/drepl_out_helpers.c:829(dreplsrv_update_refs_done) UpdateRefs failed with WERR_DS_DRA_ACCESS_DENIED/NT code 0xc0002105 for 0854286a-4fd6-42a8-bc79-4487b61c7733._msdcs.test.local DC=test,DC=local [2012/11/16 16:27:07, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:27:11, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:27:16, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed [2012/11/16 16:27:21, 1] ../source4/auth/gensec/gensec_gssapi.c:645(gensec_gssapi_update) GSS server Update(krb5)(1) Update failed: Miscellaneous failure (see text): Decrypt integrity check failed When i execute "ldbsearch --debug-stderr -H ldaps://s-vucs04.koller.local -UUsername", at the first line, i get the message: SPNEGO(gssapi_krb5) creating NEG_TOKEN_INIT failed: NT_STATUS_NO_LOGON_SERVERS root at s-vucs01:~# smbclient -L s-vucs01 --machine-pass Domain=[test] OS=[Unix] Server=[Samba 4.0.0rc2] Sharename Type Comment --------- ---- ------- netlogon Disk Domain logon service sysvol Disk IPC$ IPC IPC Service (Univention Corporate Server) homes Disk Heimatverzeichnisse print$ Disk Printer Drivers CD Disk Holz-Vitis Disk IT Disk p-v05 Printer test-Holz/HP OfficeJet Pro 8000 p-v06 Printer Umkleideraum/Sharp MX2300N p-v02 Printer B??ro/HP BusinessJet 1200d p-v01 Printer B??ro/HP LaserJet 4 p-v03 Printer Einkauf/HP OfficeJet Pro 8000 p-v04 Printer Entwicklung/OKI C5400N Domain=[test] OS=[Unix] Server=[Samba 4.0.0rc2] Server Comment --------- ------- S-VUCS01 Univention Corporate Server S-VUCS02 Univention Corporate Server Workgroup Master --------- ------- test S-VUCS02 I can see, that the master is "s-vucs02", who can i change this entry????? root at s-vucs01:~# samba-tool fsmo show InfrastructureMasterRole owner: CN=NTDS Settings,CN=S-VUCS01,CN=Servers,CN=VITIS-LAN,CN=Sites,CN=Configuration,DC=test,DC=local RidAllocationMasterRole owner: CN=NTDS Settings,CN=S-VUCS01,CN=Servers,CN=VITIS-LAN,CN=Sites,CN=Configuration,DC=test,DC=local PdcEmulationMasterRole owner: CN=NTDS Settings,CN=S-VUCS01,CN=Servers,CN=VITIS-LAN,CN=Sites,CN=Configuration,DC=test,DC=local DomainNamingMasterRole owner: CN=NTDS Settings,CN=S-VUCS01,CN=Servers,CN=VITIS-LAN,CN=Sites,CN=Configuration,DC=test,DC=local SchemaMasterRole owner: CN=NTDS Settings,CN=S-VUCS01,CN=Servers,CN=VITIS-LAN,CN=Sites,CN=Configuration,DC=test,DC=local On the windows clients, every think works fine... Why i have this errors, what can i do? Thanks for help! Regards, Thomas