I have been using a lot of tools from packet analyzers to firestarter and such but I have yet to find a powerful security tool with course/fine grained monitoring of say the top X IP activities of IP accesses to systems of interest. I have used BlackIce and other ISS security tools before but I am interested in any free or opensourced security tools that allows one to monitor these activities in real-time mode. I was thinking along the lines of something like what is in firestarter, top, and system-monitor combined in a away that allows for maximum flexibility when monitoring IP accesses and possibly with the addition of event notification of say a DDOS attack or port attacks or any of that sort of thing. Occasionally, I may suspect that I am under attack and would like to whip up the security monitor to start probing for potential attacks and to assuage my fears and to take any necessary actions to thwart any further attacks... Anyone have any suggestions? Kind regards, Dan