The Network Security Monitor Daemon is a lightweight (distributed?) network security monitor for TCP/IP LANs which will capture certain network events and record them in a relational database. The recorded data is then made available for analysis via a CGI-based interface.
You can download it from the following link: https://packetstormsecurity.com/files/download/25556/monitord-4.0beta.tar.gz
Source: https://packetstormsecurity.com/files/25556/monitord-4.0beta.tar.gz.html

