Ubuntu NFS(網絡文件系統)安裝

• 安裝nfs

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

• 查看nfs服務狀態

sudo systemctl status nfs-kernel-server

• 配置共享目錄

1、新建目錄，如 
    sudo mkdir -p /home/nfs/rw
    sudo mkdir -p /home/nfs/ro
2、編輯/etc/exports，將新增的目錄添加進去
    /home/nfs/rw	*(rw,sync,no_subtree_check,no_root_squash)
    /home/nfs/ro	*(ro,sync,no_subtree_check,no_root_squash)
3、重啓/etc/exports配置
    sudo exportfs -f
4、重啓nfs服務
    sudo systemctl restart nfs-kernel-server

• 外部服務掛載

以MacOS掛載Linux文件共享文件爲例：
創建掛載目錄
mkdir -p ~/nfs/rw
mkdir -p ~/nfs/ro

掛載
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

若報下面的錯誤
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

編輯/etc/nfs.conf，添加 nfs.client.mount.options = resvport 設置NFS客戶端使用保留端口進行掛載，再進行重新掛載