Setup
Install
$ apt-get update $ apt-get install nfs-common nfs-kernel-server
Configure exports
$ vi /etc/exports
Example: /data 172.16.16.209/255.255.255.0(rw,insecure,root_squash)
/mnt/backupvm is your directory
172.16.16.209/255.255.255.0 is your network
rw are the permissions
secure – This option requires that requests originate on an Internet port less than IPPORT_RESERVED (1024). This option is on by default. To turn it off, specify insecure
root_squash – Map requests from uid/gid 0 to the anonymous uid/gid. Note that this does not apply to any other uids or gids that might be equally sensitive, such as user bin or group staff.
no_root_squash – Turn off root squashing. This option is mainly useful for diskless clients.
Start services
$ systemctl enable nfs-common $ systemctl start nfs-common $ systemctl enable nfs-kernel-server $ systemctl start nfs-kernel-server
Command Line
List the NFS shares exported by the server: showmount -a <nfsserver>
Components
Exports
man exports – subtree_check root_squash
Located at /etc/exports
exportfs -a – Update list of shared folders
insecure – Helpful when connecting from macOS (resolves Operation Not Permitted message)
Example: /data/documents 172.16.16.0/24(rw,insecure,root_squash)
nfs-common
nfs-kernel-server
fstab Entry
Mounting
From macOS client
Finder > Go > Connect to Server > nfs://<nfsservername>:/<sharename>
Terminal > sudo mount_nfs -o resvport <nfsservername>:/<sharename> <mountpoint>
Troubleshooting
Linux NFS-HOWTO Troubleshooting NFS
Error Messages Seen and Resolved (During SetUp of my NFS Server)
RPC: Program Not Registered