# cd usr/sbin/
# ls
IGMPProxy brctl dhcp-fwd dropbear ggsip lightbox pppd routed tftpu thttpd udhcpc udhcpd updatedd upnpd
# dropbear --help
Unknown argument --help
Dropbear v
Usage: dropbear [options]
Options are:
-b bannerfile Display the contents of bannerfile before user login
(default: none)
-d dsskeyfile Use dsskeyfile for the dss host key
(default: /etc/dropbear/dropbear_dss_host_key)
-r rsakeyfile Use rsakeyfile for the rsa host key
(default: /etc/dropbear/dropbear_rsa_host_key)
-F Don't fork into background
-E Log to stderr rather than syslog
-w Disallow root logins
-p port Listen on specified tcp port, up to 10 can be specified
(default 22 if none specified)