Updated FreeDNS script to use dig to check the IP in the Master name server instead of local name server.

updateFreeDNS.sh

#!/bin/sh
#FreeDNS updater script

UPDATEURL="https://freedns.afraid.org/dynamic/update.php?_YOUR_KEY_HERE_"
DOMAIN="_YOUR_DOMAIN_HERE_"

registered=$(nslookup $DOMAIN|tail -n2|grep A|sed s/[^0-9.]//g)

current=$(dig +noall +answer @ns1.afraid.org $DOMAIN|sed 's/.*\t\([0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\).*$/\1/g')

[ "$current" != "$registered" ] && {
        wget -q -O /dev/null $UPDATEURL
        echo "DNS updated to $current on $(date).";
}

exit 0