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在升级到NFS.12.1+后、由于名称映射无效、ONTAP 9访问被拒绝

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Category:
ontap-9
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nas
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适用场景

  • ONTAP 9 .12.1及更高版本
  • NFS访问(NTFS sec模式的卷)、CIFS访问(NTFS或Unix sec模式)
  • CIFS 本地用户和组

问题描述

  • 升级到ONTAP 9.12.1及更高版本后,挂载或访问 以前可访问的目录时,用户将被拒绝访问
  • 安全跟踪表示:

Access is denied because the UNIX user could not be mapped to a valid NT user while reading the user's access rights on an object.

  • 目标卷路径中的一个卷采用NTFS安全模式、其中可能包括根卷

::> vol show -vserver svm1 -volume svm1_root -fields security-style
vserver     volume        security-style
------------- ------------------ --------------
svm1          svm1_root          ntfs

​​​​​

  • 被拒绝访问的Unix帐户会显式映射到本地Windows帐户

::> vserver name-mapping show -vserver svm1 -direction unix-win
Vserver:   svm1
Direction: unix-win
Position Hostname      IP Address/Mask
-------- ---------------- ----------------
1     -          -           Pattern: root
                      Replacement: SVM1\\Administrator

  • 本地帐户 已禁用、这是预配置的CIFS本地用户"Administrator (管理员)"的默认帐户

::> local-user show -fields is-account-disabled
  (vserver cifs users-and-groups local-user show)
vserver       user-name           is-account-disabled
------------- ------------------- -------------------
svm1          SVM1\Administrator true

  • EMS日志:

    secd.nfsAuth.noCifsCred:error]: vserver (SVM) NFS authorization cannot retrieve CIFS credentials.
    Error: Get user credentials procedure failed
    [  0 ms] Determined UNIX id 0 is UNIX user 'root'
    [     0] UNIX user 'root' mapped to Windows user 'SVM\administrator'
    [     0] Using cached 'SVM\administrator' SID mapping. **
    [     0] FAILURE: Account is disabled for local user 'Administrator'
    [     0] Could not get credentials for Windows user 'administrator' or SID 'S-1-5-21-xxxxx'

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