NFS

Server

Add entries to /etc/exports (the * can be replaced with an IP or hostname):

<dir> *(rw,sync,no_root_squash)

Enable rpc.mountd in /etc/sysconfig/nfs

MOUNTD_PORT=892

Start the NFS daemon

sudo systemctl start nfs
sudo systemctl enable nfs

Open up port 2049 over UDP and TCP

sudo firewall-cmd --zone=public --add-port=111/tcp --permanent
sudo firewall-cmd --zone=public --add-port=111/udp --permanent
sudo firewall-cmd --zone=public --add-port=2049/tcp --permanent
sudo firewall-cmd --zone=public --add-port=2049/udp --permanent
sudo firewall-cmd --zone=public --add-port=892/tcp --permanent
sudo firewall-cmd --reload

# Legacy before firewall-cmd

sudo iptables -I INPUT -p tcp -m tcp --dport 2049 -j ACCEPT
sudo iptables -I INPUT -p udp -m udp --dport 2049 -j ACCEPT
sudo /sbin/service iptables save

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Client

Example /etc/fstab entry:

<host>:<dir>       <local_dir>       nfs  user,noauto  0  0