#!/bin/bash

xyz="`tail -1 /etc/hosts.deny`"
if [ "$xyz" != "ALL: ALL" ]; then
     # Only make the change once
     echo "ALL: ALL" >> /etc/hosts.deny
fi
chown root:root /etc/hosts.deny
chmod 0644 /etc/hosts.deny
echo "diff /etc/hosts.deny-preCIS /etc/hosts.deny"
      diff /etc/hosts.deny-preCIS /etc/hosts.deny