Created
May 1, 2018 13:54
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nsupdate-info
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#! /usr/bin/env bash | |
# Update script for nsupdate.info dynamic dns | |
DOMAIN=$1 | |
TOKEN=$2 | |
if [ -z "$DOMAIN" -o -z "$TOKEN" ] ; then | |
echo "Usage: "`basename $0`" <nsupdate.info domain> <token>" | |
exit 1 | |
fi | |
CURRENT_DNS_IP=`dig +noall +answer @ns1.nerdpol.io. A $DOMAIN | sed -E 's/.*\s+IN\s+A\s+(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))/\1/g'` | |
CURRENT_EXTERNAL_IP=`curl -s https://ipv4.nsupdate.info/myip` | |
if [ "$CURRENT_DNS_IP" != "$CURRENT_EXTERNAL_IP" ] ; then | |
echo | |
echo "Changing IP from $CURRENT_DNS_IP to $CURRENT_EXTERNAL_IP" | |
#curl -u "${DOMAIN}:${TOKEN}" https://ipv4.nsupdate.info/nic/update | |
if [ "$?" != "0" ] ; then | |
echo "Error updating IP" | |
exit 1 | |
fi | |
else | |
echo "DNS Up-to-date" | |
fi | |
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