Ddns http ip

#!/bin/bash
echo "Running ddns..." >> /var/log/ddns.log
TTL=1
SERVER="178.147.213.89"
HOSTNAME="beebox.ferene.de"
KEY="KjtjG8fG1mggHopgGX7Nxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=="
KEYNAME="ferene.de"
#IP=$(ifconfig eth1 | grep "inet addr" | tr -s " " | cut -f 3 -d " " | cut -f 2 -d :)
OLD=$(host $HOSTNAME | cut -f 4 -d " ")
NEW=$(wget -O - -q icanhazip.com)
#echo "OLD: $OLD"
#echo "NEW: $NEW"
if test $OLD != $NEW
then
IP=$NEW
date >> /var/log/ddns.log
nsupdate -v  >> /var/log/ddns.log << EOF
key $KEYNAME $KEY
server $SERVER
update delete $HOSTNAME A
update add $HOSTNAME $TTL A $IP
send
EOF
cat  >> /var/log/ddns.log << EOF
key $KEYNAME $KEY
server $SERVER
update delete $HOSTNAME A
update add $HOSTNAME $TTL A $IP
send
EOF
fi