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Working (tested) asuswrt-merlin Custom DDNS script for OVH with Double NAT option
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| #!/bin/sh | |
| ### | |
| # Based on | |
| # https://github.com/RMerl/asuswrt-merlin/wiki/Custom-DDNS#google-domains | |
| # https://github.com/RMerl/asuswrt-merlin/wiki/Custom-DDNS#bind9-ddns-using-nsupdate | |
| # | |
| # Forked from | |
| # https://gist.github.com/atais/9ea6595072096ab8077f619bd3648da8 | |
| ### | |
| set -u | |
| U=user | |
| P=password | |
| H=domain | |
| # args: username password hostname ip | |
| ovh_dns_update() { | |
| CMD=$(curl -s -u $1:$2 "https://www.ovh.com/nic/update?system=dyndns&hostname=$3&myip=$4") | |
| logger "ovh-ddns-updated: $CMD" | |
| case "$CMD" in | |
| good*|nochg*) /sbin/ddns_custom_updated 1 ;; | |
| *) /sbin/ddns_custom_updated 0 ;; | |
| esac | |
| } | |
| ### When double NATed behind ISP's router this line gets IP from outside, otherwise, comment out next line. | |
| IP=$(wget -O - -q http://myip.dnsomatic.com/) | |
| # last parameter is IP, use $IP | |
| ovh_dns_update $U $P $H $IP | |
| exit 0 |
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