DDNS Updater Script

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Execute this script every 5 minutes (custom cron */5 * * * *) through the user scripts Plugin. It opens the DDNS URL only if the IPv4 or IPv6 has changed. By default the IPv4 is obtained through a web service like icanhazip.com and the IPv6 through the servers ethernet interface.


Optionally you can obtain the IPv6 from a specific container:

ipv6=$(docker inspect "Nginx-Proxy-Manager-Official" --format='{{range .NetworkSettings.Networks}}{{.GlobalIPv6Address}}{{end}}')


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  • mgutt changed the title to DDNS Updater Script

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