iftop - iftop does for network usage what top(1) does for CPU usage.
runit - runit is a cross-platform Unix init scheme with service supervision, a replacement for sysvinit...
vnStat - vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network...
sysvinit - Savannah is a central point for development, distribution and maintenance of free software, both GNU and non-GNU.
nload - Monitor network traffic and bandwidth usage in real time
Supervisor - Supervisor is a client/server system that allows its users to monitor and control a number of...