nethogs man page

• Start nethogs as root (default device is eth0): sudo nethogs
• Monitor bandwidth on specific device: sudo nethogs device
• Monitor bandwidth on multiple devices: sudo nethogs device1 device2
• Specify refresh rate: sudo nethogs -t seconds

tldr.sh

nethogs [-h] [-V] [-d] [-v] [-t] [-c] [-p] [-s] [device(s)]

NetHogs is a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most such tools do, it groups bandwidth by process - and does not rely on a special kernel module to be loaded. So if there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this, and if it's some kind of spinning process, kill it.

m

cycle between display modes (kb/s, kb, b, mb)

r

sort by 'received'

s

sort by 'sent'

q

quit

netstat(8) tcpdump(1) pcap(3)

Written by Arnout Engelen <arnouten@bzzt.net>.