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Verify permissions for Kerberos configuration

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Kerberos requires that certain UNIX permissions be set for the SVM root volume and for local users and groups.

Steps

  1. Display the relevant permissions on the SVM root volume:

    volume show -volume root_vol_name-fields user,group,unix-permissions

    The root volume of the SVM must have the following configuration:

    Name…​ Setting…​

    UID

    root or ID 0

    GID

    root or ID 0

    UNIX permissions

    755

    If these values are not shown, use the volume modify command to update them.

  2. Display the local UNIX users:

    vserver services name-service unix-user show -vserver vserver_name

    The SVM must have the following UNIX users configured:

    User name User ID Primary group ID Comment

    nfs

    500

    0

    Required for GSS INIT phase.

    The first component of the NFS client user SPN is used as the user.

    The nfs user is not required if a Kerberos-UNIX name mapping exists for the SPN of the NFS client user.

    root

    0

    0

    Required for mounting.

    If these values are not shown, you can use the vserver services name-service unix-user modify command to update them.

  3. Display the local UNIX groups:

    vserver services name-service unix-group show -vserver vserver _name

    The SVM must have the following UNIX groups configured:

    Group name Group ID

    daemon

    1

    root

    0

    If these values are not shown, you can use the vserver services name-service unix-group modify command to update them.