Last Updated: February 25, 2016
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980
· poupougnac

How to share a folder between 2 servers with NFS

Server-side configuration

You need to install nfs-kernel-server

NFS is a pseudo filesystem. You will need to mount a folder with the option --bind :

mount --bind /home/user/folder_to_share /nfs_share/folder

and set that permanently with :

/home/user/folder_to_share /nfs_share/folder none bind 0 0

About permissions, put in /etc/idmapd.conf :

[Mapping]
Nobody-User = nobody
Nobody-Group = nogroup

It permits to the server and the client to doesn't share their UID et GUID

Then to activate the share, put in /etc/exports :

/nfs_share/         x.x.x.x/24(rw,fsid=0,insecure,no_subtree_check,async)
/nfs_share/nfs_test x.x.x.x/24(rw,nohide,insecure,no_subtree_check,async)

Client-side configuration

You need to install nfs-common

Configuration is in /etc/default/nfs-common :

NEED_IDMAPD=yes (uid and guid will be matched based on name)

Activate the NFS module with :

sudo modprobe nfs
mount -t nfs4 -o proto=tcp,port=2049 IP_NFS_SERVER:/nfs_test /mnt

And then you should be able to read and write on the remote folder from the client. Thank you for reading. Tell me if anything goes wrong.

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Nice one. You can also use SSHFS if you don't need the whole performance stuff, cannot setup new services or are concerned about encryption if you cannot install NFS 4 (providing that SSH is already set up on the remote of course).

over 1 year ago ·