sslh(8) on Linux
The text f04b72fd0482, as Debian 7 (Wheezy) shipped it.
Flags it lists
-
--background -
--foreground -
--inetd -
--numeric -
--pidfile -
--timeout -
--user -
--verbose -
-P -
-V -
-f -
-i -
-n -
-t -
-u -
-v