The rcnfs entry starts the NFS, NIS and automount daemons during system boot. Additionally, it automounts filesystems with the attribute vfs = nfs NFS is a service with numerous historical vulnerabilities and should not be enabled unless there is no alternative
Solution
Use the rmitab command to remove the NFS start-up script from /etc/inittab : rmitab rcnfs Also, to be certain NFS related services have been discounted - execute the following script: /etc/nfs.clean