scp-knock — Drop-in scp wrapper to allow connections a doorman(8) protected sshd (8) server.
scp-knock is a drop-in scp wrapper for connecting to an sshd(8) server protected with the doorman(8) port knocking daemon. The wrapper simply invokes scp (1) with an additional argument specifying ssh-knock(1) as the ssh program to be used.
None currently known
Since this is a wrapper around scp(1) and ssh(1), those programs must to be tracked for interface changes.