nproxy(1) on Linux
The text f058b629d776, as Debian 9 (Stretch) shipped it.
DNS notification proxy
Flags it lists
-
--chroot -
--daemon -
--listen-address -
--listen-port -
--origin-address -
--powerdns-address -
--setgid -
--setuid -
--verbose -
-d -
-v