#ubuntu.20.04

Install NFS Server:

#sudo apt update
#sudo apt install nfs-kernel-server

Create a Directory to Share;

#sudo mkdir /nfs_share

Configure NFS Exports;

#sudo nano /etc/exports

Export the Shared Directory;

#sudo exportfs -a

Start NFS Service;

#sudo systemctl start nfs-kernel-server

#sudo systemctl enable nfs-kernel-server

Test NFS Share;

sudo mount server_IP:/nfs_share /mnt

NFS-CLIENT CONFIGURATION;

Install NFS client utilities;

#sudo apt update
#sudo apt install nfs-common

Remount the NFS Share;

#sudo mount -t nfs server_IP:/nfs_share /mnt