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SSH login to cluster using Trusted domain user times out

Last Updated:

Applies to

  • ONTAP 9.9.1P9 onwards
  • SSH
  • Domain-tunnel Authentication
  • System Manager


  • When a user from CIFS server trusted domain tries to SSH to ONTAP cluster it times out or takes long time to authenticate.

NOTE : This SSH login timout issue is not seen for users from same domain as the CIFS server domain

  • Post upgrade of Ontap, users are not able to login to cluster using domain accounts.
  • EMS log shows below error messages being reported :
cluster-01 ALERT security.invalid.login: Failed to authenticate login attempt to Vserver: cluster, username: <trusted_domain>\<user>, application:  http.
cluster-01 ERROR secd.dns.server.timed.out: DNS server 1x.xx.x.x did not respond to vserver = svm01 within timeout interval.
cluster-01 ERROR sshd.loginGraceTime.expired: Timeout before password authentication for remote host 10.xx.xx.xx.

  • ::> cifs domain trust show -vserver <svm> for the data SVM which is used for domain-tunnel fails to show the trusted domain.
  • ::> cifs domain trust rediscover -vserver <svm> fails to discover the trusted domain.
  • When authenticating in System Manager, using a Trusted Domain account, System Manager pages are responding slowly and load slowly 

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