#server
sudo apt install nfs-kernel-server
sudo mkdir /home/nfs
sudo chmod 777 /home/nfs
vi /etc/exports
/home/nfs 172.16.135.77(rw,no_root_squash,no_subtree_check)
/home/nfs 172.16.135.140(rw,no_root_squash,no_subtree_check)
/home/nfs 172.16.135.141(rw,no_root_squash,no_subtree_check)
/home/nfs 172.16.135.142(rw,no_root_squash,no_subtree_check)
sudo exportfs -a
sudo showmount -e
sudo systemctl restart nfs-kernel-server
#client
sudo apt-get install nfs-common
sudo mkdir /home/nfs
sudo chmod 777 /home/nfs
sudo mount -t nfs 172.16.135.240:/home/nfs /home/nfs
sudo vi /etc/fstab
172.16.135.240:/home/nfs /home/nfs nfs defaults 0 0