NFS supports three secure options:
- krb5: provides authentication only
- krb5i: provides authentication and integrity
- krb5p: provides authentication, integrity, and privacy (encryption of data)
NFS exports can be set to accept only secure connections. This is done by specifying the appropriate security options in the Access Configuration field of the Add Export page or the NFS Export Details page.
Setting the type of secure connections can be done using the CLI command nfs-export with the mod -c option. See the Command Line Reference for more information.