server

1.安装NFS服务器

sudo apt-get install nfs-kernel-server nfs-common

2.编辑配置文件 、/etc/exports

增加
share_path *(rw,sync,no_root_squash,insecure)

3.重启

/etc/init.d/nfs-kernel-server restart

client（mac）

1.新建文件夹

mkdir local_path

2.测试远程共享目录

showmount -e remotehost

3.挂载

mount -t nfs  172.16.12.173:share_path local_path

4.卸载磁盘

sudo diskutil unmount local_path
sudo  fuser -c local_path