#!/bin/bash
newip=$(cat /var/www/ip/doma.ip)
md5old=$(cat /var/www/ip/doma.md5)
md5new=$(md5sum /var/www/ip/doma.ip | awk '{print $1}')

if test "$md5old" = "$md5new"
then
        echo "$(date) - No change" >> /var/log/dyndns
else
        sed -i "s/\t.*\t; Serial$/\t$(date +%Y%m%d)00\t; Serial/" myfqdn.eu.zone
        sed -i "s/^doma\t.*/doma\t\t300\tIN\tA\t$newip/" myfqdn.eu.zone
        rndc reload myfqdn.eu
        md5sum /var/www/ipeu/doma.ip | awk '{print $1}' > /var/www/ipeu/doma.md5
        echo "$(date) - Updated IP $newip" >> /var/log/dyndns

fi