Picviz is a parallel coordinates plotter which enables easy scripting from various types of input (such as tcpdump, syslog, iptables logs, or Apache logs) to visualize your data and discover interesting results quickly. Its primary goal is to graph data in order to be able to quickly analyze problems and find correlations among variables. With security analysis in mind, the program has been designed to be very flexible, able to graph millions of events.
pppctl is a suite of programs suitable for use by those with ppp connections. It includes programs to facilitate charging for use of the connection, controlling the connection from a web page and selecting from a range of ISPs to use to dialup. It's also ideal for doing automated mail/news polls.
ppplog keeps track of your PPP online sessions. Once started it detects when you are online and automatically calculates costs according to your local phone company. It doesn't matter whether your company still calculates by units (fix price for a unit, units differ in length) or by seconds (unitlength = n sec, price differs). Everything can be easily configured. The setup for your phone company is stored in a config file.