All you need to do is to add
*/10 * * * * wget -qO - "http://the_dyndns_server/update.php?host=myhostname&pass=secret"
to your crontab.
I don't want to have my password in the access log!
We also support passing password with POST data
email - an optional email address, the administrator can for example contact you or you can request lost password
aaaa - update with this IPv6 address instead of the address of the computer making the request
a - the same for IPv4; aaaa and a can't be supplied simultaneously, sorry
The hostname is automatically expired 1 month after it has been last updated.