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SVM has lost connectivity to domain controller

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ontap-9
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nas
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Applies to

  • ONTAP 9
  • CIFS/SMB
  • Active Directory (AD)
  • Domain Controller (DC)

Issue

  • Loss of access for new CIFS sessions to shares on the cluster after changes/updates were made to the Domain Controllers
  • EMS Logs show repeated secd.cifsAuth.problem:error

[node-01: secd: secd.cifsAuth.problem:error]: vserver (svm1) General CIFS authentication problem.
 Error: User authentication procedure failed CIFS SMB2 Share mapping - Client Ip = 172.1.1.1   ...   
 [     9] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    12] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    13] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)    [    14] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    17] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    18] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)    [    21] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    29] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    29] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)     [    33] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    41] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    41] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)    [    45] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    52] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    52] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)    [    55] Successfully connected to ip 172.1.1.253, port 445 using TCP   
 [    62] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup   
 [    63] Unable to connect to NetLogon service on dc.domain.com (Error: RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE)    [    63] No servers available for MS_NETLOGON, vserver: 4, domain: ...
 [Please refer to secd log for more detail!]

  • SECD Logs detail similar errors:

[kern_secd:info:14213] Failure Summary:
[kern_secd:info:14213] Error: User authentication procedure failed
[kern_secd:info:14213] CIFS SMB2 Share mapping - Client Ip = 172.1.1.1
[kern_secd:info:14213]   ...
[kern_secd:info:14213]   [     9] Successfully connected to ip 172.1.1.253, port 445 using TCP
[kern_secd:info:14213]   [    12] Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup
[kern_secd:info:14213]   [    13] Unable to connect to NetLogon service on dc.domain.com (Error:

...
info :  Successfully connected to ip 172.1.1.253, port 445 using TCP { in _connect() at src/connection_manager/secd_connection_shim.cpp:553 }
debug:  NEGOTIATE RESPONSE: DC selected SMB2/3 dialect 0x210  { in Smb2ParseNegotiateResponse() at src/Smb2/Smb2Negotiate.cpp:234 }
debug:  SIGNING: DC REQUIRES signing  { in Smb2ParseNegotiateResponse() at src/Smb2/Smb2Negotiate.cpp:239 }
debug:  Found matching cache 'cc:C:4:0'  { in secd_ccache_resolve() at src/utils/secd_krb_ccache.cpp:1052 }
info :  [krb5 context 09C55000] Getting credentials svm1$@dc.domain.com -> cifs/svm1.dc.domain.com@ using ccache NETAPPCC:cc:C:4:0
debug:  Found matching cache 'cc:C:4:0'  { in secd_ccache_resolve() at src/utils/secd_krb_ccache.cpp:1052 }
info :  [krb5 context 09C55000] Retrieving svm1$@dc.domain.com -> cifs/svm1.dc.domain.com@ from NETAPPCC:cc:C:4:0 with result: 0/Success
info :  [krb5 context 09C55000] Creating authenticator for svm1$@dc.domain.com -> cifs/svm1.dc.domain.com@, seqnum 242533150, subkey aes256-cts/B57F, session key aes256-cts/BEF6
ERR  :  Encountered NT error (NT_STATUS_ACCESS_DENIED) for SMB command SessionSetup  { in LogNtStatusCode() at src/Commands/Commands.cpp:444 }
ERR  :  SMB2 response has NT error 0xc0000022  { in ParseSmb2HeaderResponse() at src/Smb2/Smb2Utils.cpp:497 }
ERR  :  RESULT_ERROR_GENERAL_FAILURE:3 in Smb2ParseSessionSetupResponse() at src/Smb2/Smb2SessionSetup.cpp:185
ERR  :  RESULT_ERROR_GENERAL_FAILURE:3 in Smb2SessionSetup() at src/Smb2/Smb2SessionSetup.cpp:276
ERR  :  RESULT_ERROR_GENERAL_FAILURE:3 in LogOnUserExtBody() at src/Actions/ActionsONTAP.cpp:2490
ERR  :  RESULT_ERROR_SECD_NO_CONNECTIONS_AVAILABLE:6942 in connectToDomainController() at src/connection_manager/secd_connection.cpp:221

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