this firewall is a union of lot of tool distributed free for the OS NetBSD, OpenBSD and FreeBSD, use web services with xml-rpc and soap, and a desktop too based on Gtk
Squeezer is a multi-dimensional logfile analyzer for Squid web cache server. It measures transfer speed from Squid, source servers and other caches and gives an information useful for tuning Squid and web cache hierarchy or mesh.
my-swatch pretends to be an implementation of msyslog and swatch together. What it pretends to accomplish is put all together, to log events to a remote database (like msyslog) and to awake triggers (like swatch).
Shoki is a free, open source network intrusion detection system. The fundamental design goals are simplicity and modularity, and the focus is on traffic analysis rather than content inspection.