Linux: Network File System (NFS)

• Network File System
  • Allow sharing files over the network
  • Developed as a standard protocol
  • Used by *NIX and macOS
    • Can be added to Windows
• Configuring an NFS Server
  1. Install NFS (if necessary)
     • yum install nfs-utils libnfsidmap
  2. Enable and Start Services
     • systemctl enable --now rpcbind nfs-server rpc-statd nfs-idmapd
  3. Create a folder to share
     • mkdir -pm 777 /export/share
  4. Add the folder to the export list
     • sudo vi /etc/exports
     • /export/share 10.0.0.0/16(rw,sync,no_root_squash)
  5. Reload the config file
     • sudo exportfs -r
     • sudo exportfs -v to verify
  6. Allow clients through the firewall
     • firewall-cmd --permanent --zone public --add-service mountd
     • firewall-cmd --permanent --zone public --add-service rpc-bind
     • firewall-cmd --permanent --zone public --add-service nfs
     • firewall-cmd --reload
• Configuring an NFS Client
  1. Install NFS (if necessary)
     • yum install nfs-utils libnfsidmap
  2. Enable and Start rpcbind
     • systemctl enable rpcbind
     • systemctl start rpcbind
  3. Test if share is accessible
     • showmount -e <server_ip>
  4. Mount the share to a local folder
     • sudo mkdir /mnt/share
     • mount <server_ip>:/export/share /mnt/share
  5. (Optional) Add to fstab to mount during boot
     • sudo vi /etc/fstab
     • <server_ip>:/export/share /mnt/share nfs rw,sync,hard,intr 0 0

Explanation of NFS Options