Online site for Linux Firewalls: Attack Detection and Response
22 September, 2007

As an example of some of the resources that can be found online, all of the iptables visualizations in Chapter 14 can found along with the Gnuplot directive and data files here for easy downloading. Here is a sample visualization that shows a 3D Gnuplot view of a port sweep against a Honeynet (note the outlier above the general plane which indicates that the IP 200.216.205.189 has sent a total of 2,244 packets to TCP port 3306, and this is far in excess of any other IP address).
