knocker(1) on Linux
The text e9fa4f65a743, as Debian 10 (Buster) shipped it. The page shows this text now.
An easy to use network security port scanner
Flags it lists
-
--configure -
--end-port -
--help -
--host -
--last-host -
--last-scan -
--logfile -
--no-colors -
--no-fency -
--port -
--quiet -
--start-port -
--version -
-EP -
-H -
-P -
-SP -
-h -
-lf -
-nc -
-nf -
-q -
-v