... firewall.1 Intrusion Detection - The Big Picture - SANS GIAC © 2000, 20011 Intrusion Detection The Big Picture – Part II Stephen NorthcuttThis page intentionally left blank.20 Intrusion Detection ... in?11 Intrusion Detection - The Big Picture - SANS GIAC © 2000, 200111Host- and Network-Based Intrusion Detection • Host-Based Intrusion Detection –Unix – Windows NT, 95, 98• Network-Based Intrusion ... more aware of the requirements of intrusion detection and in some cases are building network intrusion detection capabilities into the switch itself.18 Intrusion Detection - The Big Picture - SANS...