ddns3(1) on Linux
The text 73859f120479, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
ddns.nu remote update client
Flags it lists
-
--auth -
--host -
--pass -
--port -
--user