NFS Techne

A practical knowledge base

Setup NFS server on Debian

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

Configure NFSv4 in /etc/default/nfs-common:

NEED_STATD="no"
NEED_IDMAPD="yes"

Configure NFSv4 in /etc/default/nfs-kernel-server. Disable NFSv2 and NFSv3.

RPCNFSDOPTS="-N 2 -N 3"
RPCMOUNTDOPTS="--manage-gids -N 2 -N 3"

sudo systemctl restart nfs-server

Configure FirewallD:

sudo firewall-cmd --zone=public --permanent --add-service=nfs
sudo firewall-cmd --reload

Setup pseudo filesystem and exports:

sudo mkdir /shared
sudo chown -R nobody:nogroup /shared

Add exported directory to /etc/exports:

/shared <ip address of client>(rw,no_root_squash,no_subtree_check,crossmnt,fsid=0)

Create the NFS table:

sudo exportfs -a

Setup NFS client on Debian

sudo apt install -y nfs-common

Create shared directory:

sudo mkdir -p /mnt/shared

Mount NFS exports:

sudo mount.nfs4 <ip address of server>:/ /mnt/shared

Note that <server ip>:/ is relative to the exported directory. So /mnt/shared on the client is /shared on the server. If you try to mount with mount -t nfs <server ip>:/shared /mnt/shared you will get a no such file or directory error.

/etc/fstab entry:

<ip address of server>:/ /mnt/shared nfs4 soft,intr,rsize=8192,wsize=8192

sudo systemctl daemon-reload
sudo mount -av