Server
Install NFS server components:
# apt-get install nfs-kernel-server portmap
Add the "root" of all shares (if this is your only share, this should be all you need):
# echo "/home 192.168.1.0/24(ro,fsid=0)" >> /etc/exports
Add additional shares:
# echo "/home/joe 192.168.1.0/24(rw,sync,no_subtree_check)" >> …