Menu
Nethogs. Nethogs is an open-source command-line utility that allows viewing network usage of a process running in the Linux system. Unlike the above IPTraf and Iftop tools, Nethogs sorts the output by process and bandwidth usage. Therefore, it comes handy when you need to find which process is using more bandwidth.
NetHogs is probably what you're looking for:
a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.
NetHogs does not rely on a special kernel module to be loaded. If there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this. This makes it easy to identify programs that have gone wild and are suddenly taking up your bandwidth.
Since NetHogs heavily relies on /proc, most features are only available on Linux. NetHogs can be built on Mac OS X and FreeBSD, but it will only show connections, not processes...
Also iftop:
display bandwidth usage on an interface
iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. Handy for answering the question "why is our ADSL link so slow?"...
iptraf is my favorite. It has a nice ncurses interface, and options for filtering, etc.
jnettop is another candidate.
edit: it only shows the streams, not the owner processes.
ntop or nagios
Another option you could try is iptstate.
Check bmon. It's cli, simple and has charts.
Not exactly what question asked - it doesn't split by processes, only by network interfaces.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With