Skip to main content
NetApp Knowledge Base

CIFS Kerberos outage after modifying msDS-SupportedEncryptionTypes with AD Attribute Editor

  1. Last updated
  2. Save as PDF
Views:
505
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
NAS
Last Updated:

Applies to

  • ONTAP 9
  • CIFS/SMB
  • Kerberos
  • Active Directory

Issue

  • Used Active Directory Attribute Editor to change CIFS server's machine account's attribute msDS-SupportedEncryptionTypes to a value (e.g. 30) that indicates AES is enabled
  • Afterwards, CIFS clients that navigate to \\hostname cannot access data because Kerberos authentication fails
  • CIFS clients that navigate to \\1.2.3.4 can access data because NTLM authentication succeeds
  • cifs sec show -fields adver indicates that that AES encryption is not enabled in ONTAP 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.