#!/bin/bash -x

# Check configuration file is there
if [ ! -d "/home/aaa/conf/`hostname --fqdn`/dns" ]; 
then echo "Missing configuration files"; exit 1;
fi

# Display the changes
echo "The following changes are applied to your host configuration"
diff -Nur /etc/hosts /home/aaa/conf/`hostname --fqdn`/dns/hosts

cp -f /etc/hosts /etc/hosts.bkp
cp -f /home/aaa/conf/`hostname --fqdn`/dns/hosts /etc/hosts

# Install the dnsmasq package if needed
aptitude install dnsmasq

# Copy its configuration
rm -rf /etc/dnsmasq.conf.bkp /etc/dnsmasq.d.bkp
mv -f /etc/dnsmasq.conf /etc/dnsmasq.conf.bkp
mv -f /etc/dnsmasq.d /etc/dnsmasq.d.bkp
cp -f /home/aaa/conf/`hostname --fqdn`/dns/dnsmasq.conf /etc/
cp -Rf /home/aaa/conf/`hostname --fqdn`/dns/dnsmasq.d /etc/

# Restart the dnsmasq daemon
/etc/init.d/dnsmasq restart