If you have Kerberos configured and running, there is no reason why you should not use it with the NFS. Kerberos highly increases NFS security when used correctly due to strong authentication, privacy, and integrity support provided by Kerberos.
Before you begin configuring the NFS to use Kerberos, your setup should satisfy the following conditions:
Kerberos client software is installed and configured on all systems, including NFS server(s) and clients
Kerberos servers are configured and running
The following steps describe how to configure Kerberos for use with the NFS:
Assuming that your NFS server’s name is fileserver.company.com and your realm is Company.COM ...