Firewall-1 Response is a Perl script for performing simple active responses based on a Checkpoint Firewall-1. It is good for closing off your network against people who do port scans or network sweeps.
fw sam' provides a command line interface to a limited feature-set of the firewall security policy. The purpose of this is to allow scripts such as this a way to dynamically change the security policy of one or more firewalls without administrator intervention. This should scare you, because of the potential of these changes allowing bad guys to run a DoS attack against you.