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secd.ldap.noServers:EMERGENCY due to trusted DC discovery after ONTAP upgrade

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Applies to

  • ONTAP 9.12.1P8 and later
  • ONTAP 9.13.1  and later 
  • SMB/CIFS
  • Domain Trusts

Issue

[node1: secd: secd.ldap.noServers:EMERGENCY]: None of the LDAP servers configured for Vserver (SVM1) are currently accessible via the network for LDAP service type (Service: LDAP (Active Directory), Operation: SiteDiscovery).
 

[node1: secd: secd.conn.auth.failure:notice]: Vserver (SVM1) could not make a connection over the network to server (ip <TrustedDC>, port 389). Error: Operation timed out (Service: LDAP (Active Directory), Operation: SiteDiscovery).

Note: EMS entry for trusted Domain Controllers. Before upgrade, no such log entry.

A Kerberos pre-authentication failure occurred for SVM "svm_ZUSCUPxxST1xx" due to invalid credentials for ZUxCUPDAXxxx$@TAAAXxx01.LOCAL

  • The MS-LDAP discovered servers for trusted domains are unavailable:
    • ::> vserver cifs domain discovered-servers show -vserver <svm>
  • Below troubleshooting steps can be performed before proceeding with solution
    • Ensure communication between SVM and trusted DC:
      • LDAP to trusted DCs is not blocked by firewalls etc.
      • DCs respond to LDAP requests.
      • If the indicated trusted domain no longer exists:
        • Cosmetic error without impact
        • Remove any decommissioned domain trust relationships from Active Directory to prevent errors

 


 

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