The Realeyes IDS captures and analyzes full sessions. When an incident is reported, the graphical user interface will display both halves of the session to determine what occurred. The GUI also provides management of application users, sensors, and a database. Realeyes is a replacement for the RenaissanceCore software.
rules2mrtg is a tool that creates MRTG data traffic graphs derived from iptables's internal traffic statistics for the local machine for every configured IP number/ethernet alias. You can also define ports or port ranges to be monitored per IP address. This avoids problems with using SNMP and aliased interfaces.