[root@kvm7 ~]# mount.nfs4 -o sec=krb5p,v4.2 kvm5.deyu.wang:/protected /mnt/nfssecure mount.nfs4: access denied by server while mounting kvm5.deyu.wang:/protected
[root@kvm7 ~]# kinit -k -t /etc/krb5.keytab nfs/kvm7.deyu.wang@DEYU.WANG
[root@kvm5 ~]# kinit -k -t /etc/krb5.keytab nfs/kvm5.deyu.wang@DEYU.WANG