with or without Authentication
The first column in this field allows you to select the authentication type
for this export. The options are :
- sys
- Old-style NFS IP or network based security, which is enforced entirely by
the client IP address.
- krb5
- Kerberos authentication (requires that the client and server systems have
Kerberos configured).
- libkey
- The LIPKEY security mechanism.
- spkm-3
- SPKM3 authentication mechanism.