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Cifs Performance may be impacted due to spamming failed user logons in ONTAP 7-mode

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45
Visibility:
Public
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0
Category:
data-ontap-7
Specialty:
cifs
Last Updated:

Applies to

  • Data ONTAP 7-Mode
  • CIFS\SMB

Issue

CIFS user performance may be impacted due to a 5 second delay authentication protection introduced by BUG 149707

A misbehaving client may be injecting failed authentication requests midstream of real CIFS\SMB workload for the same session.


The following output is displayed by only by enabling options cifs.trace_login on command:


[auth.trace.authenticateUser.loginTraceMsg:info]: AUTH: Delaying the response by 5 seconds due to continuous failed login attempts
 by user user$ of domain mydomain1 from client machine xx.xx.xx.xx.

 

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