Network File System

$ apt install nfs-kernel-server

$ systemctl start nfs-kernel-server.service

/scratch *(rw,async,no_subtree_check,no_root_squash)

$ mkdir /scratch

$ exportfs -a
$ exportfs -v

apt install nfs-common

mkdir /mnt/scratch
mount localhost:/scratch /mnt/scratch

$ exportfs -v
$ exportfs -ua
$ showmount -e localhost