iftop – Find out who is eating your bandwidth

Jul 03 2008

iftop: display bandwidth usage on an interface

How to install?

  • Download and install the Universal Binary from here
  • Or if you already have MacPort installed

sudo port install iftop

How to use it?

  • run “ifconfig -l” or “/Applications/Utilities/Network\ Utility.app” to get your network interface id.

  • In my case is ‘en1′, so I just type into Terminal:

sudo iftop -i en1

Tales From The Command Line: Where Has My Bandwidth Gone?

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