radiusd(8) on Linux
The text 2214a539a6fa, as Debian 3.0 (Woody) shipped it.
Flags it lists
-
-a -
-b -
-d -
-f -
-h -
-i -
-l -
-o -
-p -
-q -
-s -
-t -
-v -
-w -
-x