iftop - iftop does for network usage what top(1) does for CPU usage.
nmon - This systems administrator, tuner, benchmark tool gives you a huge amount of important performance...
BandwidthD - BandwidthD tracks usage of TCP/IP network subnets and builds html files with graphs to display...
vtop - vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.
vnStat - vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network...
psutil - psutil is a module providing an interface for retrieving information on all running processes and...