Problem in access NFSv4 space as the root user

[Kevin Coffman]

On 10/16/07, Ido Levy <IDOL at il.ibm.com> wrote:
>
> Hello All,
>
> We are trying to understand the behavior of a system that support automount
> by NFSv4 with security flavor krb5.
> We have both Linux and AIX clients and when logging to these clients as the
> root user we have noticed that:
>
> 1) From the Linux client  as the "root" user  we are able to access (cd,
> ls, df )  NFSv4 mount point without any kerberos ticket.
> 2) From the AIX client as the "root" user without any kerberos ticket we
> got "permission denied" error  when trying to cd to the mount point and its
> sub-dirs.
>
> We are using AIX-5.3 as NFSv4 server and RHEL 5/AIX-5.3 as NFSv4 clients.
> We are wondering what should be the normal behavior of such scenario.
>
> We would appreciate your advice
>
> Ido Levy
> IBM Haifa Labs, Israel
> Office +972 4 8281082

Just answered this on the Kerberos list.  See question 5 here:

http://www.citi.umich.edu/projects/nfsv4/linux/faq/#kerberos