Lesson 5

Date: 2/19/2009
Network File System (NFS)
Linux for Engineering and IT Applications


Exercises with NFSv4

  • NFSv4 exports exist in a single pseudo filesystem, , where the real directories are mounted with the --bind option.

    Create the export filesytem on the NFS server (the node machine): 
    mkdir /export
mkdir /export/users
mkdir /export/software

    Create and mount the real users directory with /export/users : 
    mkdir /home/NFSv4
mkdir /usr/software
mount --bind /home/NFSv4 /export/users
mount --bind /usr/software /export/software
    To survive a reboot, the mount can be added into /etc/fstab 
    /home/NFSv4    /export/users   none    bind  0  0
/home/software    /export/software   none    bind  0  0

    In /etc/default/nfs-kernel-server we set: 
    NEED_SVCGSSD=no

    In /etc/default/nfs-common on both the server and the client 
    NEED_IDMAPD=yes
NEED_GSSD=no

    Restart /etc/init.d/nfs-common on both the server and the client: 
    /etc/init.d/nfs-common restart

    Export the directories on the server: in /etc/exports, put 
    /export desktop01(rw,fsid=0,insecure,no_subtree_check,async)
/export/users desktop01(rw,nohide,insecure,no_subtree_check,async)
/export/software desktop01(rw,nohide,insecure,no_subtree_check,async)
    You can keep /home/exports desktop01(rw) for NFSv3 in /etc/exports. 
    /etc/init.d/nfs-kernel-server restart


    On the client, create a mounting point and mount the directory from the NFSv4 server: 
    mkdir /home/NFSv4
mount -t nfs4  node01:/ /home/NFSv4
    See mounted directories 
    df -h

    Check the file system types 
    mount

    Notice that directories users and software appear under /home/NFSv4 
    ls -l /home/NFSv4

    References:NFSv4Howto on Ubuntu

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