Nutanix Certified Professional (NCP) NCP-US Question # 19 Topic 2 Discussion

 Nutanix Files supports NFSv4, which includes advanced features such as strongly mandated security1. NFSv4 supports different security flavors such as sys, krb5, krb5i, and krb5p1. The sys flavor uses UNIX-style authentication based on UID/GID mapping1. The other flavors use Kerberos authentication with different levels of protection1.

Since the NFS v4 export share was configured with System authentication, which is equivalent to sys flavor1, the RHEL administrator should issue the mount command with the option -o sec=sys21.