scp without known_hosts check

Question

Is there any chance to skip the known_hosts check without clearing known_hosts or disable it in ssh.conf? I neither have access to known_hosts nor ssh.conf yet. Don't find any suitable in man.

Answer 1

scp is supposed to take the same command line options as ssh, try:

-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null

Maybe add -q to disable the warnings as well.

Answer 2

For those of us who are less versed in Linux shorthand, the full syntax would look something like this:

scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -r $source $user@$host:$destination