CLIENTNAME=$1

yum install firewalld -y
systemctl start firewalld
firewall-cmd --permanent --add-interface=eth0 --zone=public
firewall-cmd --permanent --add-service=nfs --zone=public
firewall-cmd --reload

yum install nfs-utils -y

mkdir /var/nfs
echo test file > /var/nfs/file01
chown -R nobody:nobody /var/nfs
chmod -R 755 /var/nfs

sed -i.original "s/RPCNFSDARGS.*/RPCNFSDARGS=\"--no-nfs-version 4\"/" /etc/sysconfig/nfs 

systemctl start nfs-server
systemctl enable nfs-server

cat >> /etc/exports << EOF
/var/nfs $CLIENTNAME(rw,sync,root_squash)
EOF

exportfs -a