MFilter is a replacement for maildrop/procmail and fetchmail/getmail. It is an email retriever that supports Maildir or command delivery and processing. Its secondary goal is to facilitate the life of the network administrator by centralizing the downloading, filtering, and classification of mail in a simple and flexible way. Some of its features include XML file based configuration and logging of each action taken.
Sound of Traffic is an application that converts TCP/IP header information into MIDI notes via the Java Synthesizer. Its purpose is to listen in on network traffic in ordered time via a tempo rather than in real-time, which could be more chaotic. In this sense it becomes closer to music then noise.