LinuxPlanet: Network Intrusion Detection, Neighborhood Watch Style

“Keeping an eye on the valuables stored away in your network is
a tough job these days. Thugs and criminals are trying to jimmy
your ports. Terrorists are lurking around your network
neighborhood. And stealthy email spy-ware may already be in
employee mailboxes, just waiting to silently ship secrets out to
the cyber underworld.

“Conventional programs like Tripwire and Snort do a great job of
looking for sneaky file timestamp changes and malicious code
signatures. Unfortunately, these don’t provide complete