What Is “Iftop” ?

Iftop is another console-based bandwidth monitoring tool available from linux. Iftop offers more feature that can be quite useful on monitoring bandwidth from console terminal. When executed, this bandwidth monitoring tool displays source and destination hosts currently passing thru its current selected interface(s).

Iftop can also display ports and protocol being used between source and destination host. The bandwidth usage graph is displayed from iftop using a simple background change of color. Iftop can also be configured to monitor and display only specific host interface, host source, IP address, IP network block, destination host, bandwidth exceed limit, filter rules, bandwidth rate, bandwidth usage summary, sorting order, and much more.