ipcheck(8) on Linux
The text 90287dbfe4e7, as Debian 10 (Buster), Debian 9 (Stretch) shipped it. The page shows this text now.
Dyndns.org client to register your dynamic IP address
Flags it lists
-
--devices -
--help -
--makedat -
--syslog -
-A -
-F -
-a -
-b -
-c -
-d -
-e -
-f -
-g -
-h -
-i -
-j -
-l -
-m -
-n -
-o -
-p -
-q -
-r -
-s -
-t -
-v -
-w