Je n'ai pas utilisé ce service mais il existe bien.
Voici une copie de l'écran de config :
DDNS (Dynamic DNS) Settings
Dynamic DNS provides users on the Internet a method to tie their domain name(s) to computers or servers. DDNS allows your domain name to follow your IP address automatically by having your DNS records changed when your IP address changes.
This DNS feature is powered by TZO.com. With a DDNS connection you can host your own web site, email server, FTP site and more at your own location even if you have a dynamic IP address. To sign-up for a free 30-day trial click here (http://smc.tzo.com/).