darkstat 3.0.719 Network statistics gatherer
darkstat is a packet sniffer that runs as a background process, gathers all sorts of statistics about network usage, and serves them over HTTP. Features:
Traffic graphs, reports per host, shows ports for each host.
Embedded web-server with deflate compression.
Asynchronous reverse DNS resolution using a child process.
Small. Portable. Single-threaded. Efficient.