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NetApp Knowledge Base

OCUM : LDAPs authentication fails due to sha-1 certificate

Last Updated:

Applies to

  • OnCommand Unified Manager (OCUM)
  • Active IQ Unified Manager


  • LDAPs does not function with a SHA-1 certificate and Unified Manager shows error 


ERROR [admin] [default task-34] [service.logging.SimpleRemoteLoggingService|logOnServer] [c.n.n.c.u.a.e.ApplicationErrorHandler] Cannot establish communication to the host IP-Adress over SSL

  • And within the ocum-error.log

org.springframework.ldap.ServiceUnavailableException: IP-Adress:636; socket closed; nested exception is javax.naming.ServiceUnavailableException: IP-Adress:636; socket closed

  • On the domain controller in the eventvwr

Event 2085, ActiveDirectory_DomainService

Error Value :

The client and server cannot communicate, because they do not possess a common Algorithm


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