Secure NFS mount for a single user

We have

Server 1 - mounts an NFS share from another server to a users directory.

Server 2 - has NFS share and the share only allows access from Server 1.

How can we make sure no other users on Server 1 can access the NFS mount?

Mac address registering?

that is how my dad controls who can get on his internet at home. Even if they have the wpa key they still can not get access to the server without the server having their computers mac address.

I'm not sure how to set it up. I just know it works.

you can use the chmod command to set the directory to rwx for that user only. So that the users directory would have rwx------ permissions. Now no one can access the users directory except for the user only.

Make sure the NFS mount only will allow that 1 user in the dfstab.

Thanks that dawned on me after posting this.

And how do you set permissions in FSTAB for a user on a mountpoint?