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