Update DtDNS Bash Script

update-dtdns.sh

#!/usr/bin/bash

DOMAIN=
PASSWORD=
IPADDR=`wget -qO- tnx.nl/ip`
LASTIP=`nslookup bitmono.dtdns.net ns1.darktech.org | grep -A1 bitmono | grep Address | awk '{ print $2 }'`

echo -n "`date` - "

if [ "$IPADDR" != "$LASTIP" ]; then
  echo -e "GET /api/autodns.cfm?id=$DOMAIN&pw=$PASSWORD&client=BSD
HTTP/1.1\nHost: www.dtdns.com\nUser-Agent: bash\n\n" | \
            nc www.dtdns.com 80 > /dev/null 2>&1
  echo "Posted IP change from $LASTIP to $IPADDR"
else
  echo "IP still $IPADDR"
fi