NFS Export Setup Guide for Ubuntu EC2

This guide covers the steps to set up NFS export to share a directory from an Ubuntu server running on EC2.


  1. Start an Ubuntu EC2 instance and check the security group to make sure that the NFS port on this server is open for connection from your NFS client servers.

  2. Install NFS server.

    $ sudo apt-get install nfs-kernel-server

  3. Mount your objectivefs filesystem (e.g. on /ofs).

    $ sudo mount.objectivefs <your filesystem> /ofs

  4. In /etc/exports, add the following line where directory is the directory you would like to share and ip address is the ip address of the NFS client machines.

    <directory> <ip addr>(rw,fsid=<unique id>,no_subtree_check,mp,async)
    Example to allow the NFS client at to mount /ofs:

  5. In /etc/default/nfs-kernel-server, increase the number of threads on the NFS server.

    RPCNFSDCOUNT=<number of threads>  # e.g. 64

  6. Restart the service.

    $ sudo service nfs-kernel-server restart
    $ sudo service idmapd restart   # you may also need to restart idmap


by ObjectiveFS staff, July 24, 2016
ObjectiveFS is a shared file system for OS X and Linux that automatically scales and gives you scalable cloud storage. If you have questions or article idea suggestions, please email us at