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How can AD connectivity issues impact authentication for ONTAP local admin users?

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ontap-9
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Applies to

  • ONTAP 9
  • ONTAP administrator authentication
  • ZAPI/REST-API

Answer

  • The ONTAP HTTP server relies on MGWD for authentication.
  • If both Active Directory (AD) domain users and ONTAP local admin users access the HTTP server and AD domain authentication is unavailable, AD users won't be able to authenticate.
  • If AD domain users continue to connect, this can cause RPC requests to MGWD to time out, impacting both domain and password authentication

Apache error log
Authentication error (user adminuser1): Failed to invoke RPC with uncached client: RPC: Timed out; netid=tcp fd=xx TO=25.0s TT=25.000s...

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