scripts/bash/ydns-simple
Mikaela Suomalainen aa06ce2eb3 ydns-simple: initial commit
getting IPv4 and IPv6 addresses works now.
2015-01-18 12:25:05 +02:00

33 lines
974 B
Bash
Executable File

#!/usr/bin/env bash
# This script is based on cf-ddns.sh found at
# <https://gist.github.com/larrybolt/6295160> and it's comments.
# Inspiration also took from
# <https://github.com/commx/ydns/blob/master/updater.sh> which is a lot
# more complex than this.
# Get IPv4 address
WAN_IP4=$(dig +short myip.opendns.com @resolver1.opendns.com)
if [ -f $HOME/.wan_ip4-cf.txt ]; then
OLD_WAN_IP4=$(cat $HOME/.wan_ip4-cf.txt)
else
echo "No file, need IP4"
OLD_WAN_IP4=""
fi
# Get IPv6 address
WAN_IP6=$(dig +short myip.opendns.com AAAA @2620:0:ccc::2)
if [ -f $HOME/.wan_ip6-cf.txt ]; then
OLD_WAN_IP6=$(cat $HOME/.wan_ip6-cf.txt)
else
echo "No file, need IP6"
OLD_WAN_IP6=""
fi
#if [ "$WAN_IP" = "$OLD_WAN_IP" ]; then
# echo "IP Unchanged"
#else
# echo $WAN_IP > $HOME/.wan_ip-cf.txt
# echo "Updating DNS to $WAN_IP"
# curl -s https://www.cloudflare.com/api.html?a=DIUP\&hosts="$cfhost"\&u="$cfuser"\&tkn="$cfkey"\&ip="$WAN_IP" > /dev/null
#fi