Ubuntu NFS(网络文件系统)安装

• 安装nfs

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

• 查看nfs服务状态

sudo systemctl status nfs-kernel-server

• 配置共享目录

1、新建目录，如 
    sudo mkdir -p /home/nfs/rw
    sudo mkdir -p /home/nfs/ro
2、编辑/etc/exports，将新增的目录添加进去
    /home/nfs/rw	*(rw,sync,no_subtree_check,no_root_squash)
    /home/nfs/ro	*(ro,sync,no_subtree_check,no_root_squash)
3、重启/etc/exports配置
    sudo exportfs -f
4、重启nfs服务
    sudo systemctl restart nfs-kernel-server

• 外部服务挂载

以MacOS挂载Linux文件共享文件为例：
创建挂载目录
mkdir -p ~/nfs/rw
mkdir -p ~/nfs/ro

挂载
sudo mount -o rw,nfsvers=4 10.211.55.5:/home/nfs/rw ~/nfs/rw
sudo mount -o rw,nfsvers=4 10.211.55.5:/home/nfs/ro ~/nfs/ro

若报下面的错误
mount_nfs: can't mount /home/nfs/rw from 10.211.55.5 onto /Users/kuxue/nfs/rw: Operation not permitted
mount: /Users/kuxue/nfs/rw failed with 1

编辑/etc/nfs.conf，添加 nfs.client.mount.options = resvport 设置NFS客户端使用保留端口进行挂载，再进行重新挂载