Some of you may have noticed this error on IScorE:

IScorE’s scanner is only compatible with SSH version 2. In order to remedy this you’ll need to edit your SSH config file (most likely /etc/ssh/sshd_config). Make sure the Protocol directive is set to 2 and the HostKey lines are uncommented (comments begin with a # symbol), as shown below:

Afterwards, restart the SSH daemon by issuing “service ssh restart” as root. (Note: this command may vary by platform. If nothing else, rebooting the server will apply the changes).