[SOLVED] Kerberos Privilege

I tried to configure Kerberos with NFS and configured every thing all right on the server,but the only problem is with the client side.

I configured my kerberos server and nfs server on 192.168.20.1 machine and start all the services, services is started without ne problem.

Then i copied my /etc/krb5.conf on 192.168.20.2 machine
on /etc/ location. (This is the client machine).

On the client machine i login through

#kadmin -p root/admin

But the problem is that when every i tried to use listprincs command it give me a error message

get_principals : operation requires 'list' privilege while retrieving list.

I figured out the solution but cant get the success.

Please let me know what i did wrong.

Thanks in advance.....