[CentOS] Config for NFSv4 an Kerberos on CentOS 5.1

Hi list,
Is it possible to set up an NFSv4/Kerberos environment on CentOS 5.1?
I set up Kerberos and NFS but get several erros

"Warning: rpc.gssd appears not to be running.
mount.nfs4: Permission denied"

Is this an CentOS oder an config problem?

Greetings
Sebastian

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