iftop for Linux bandwidth monitoring

Since I often work remotely (coffices and stuff), I use 3G/4G modems with me to provide some connectivity while I'm out. Adding the VPN services in-between I need to know how much traffic is passing through my network, inbound and outbound.

So iftop was the easiest and lightest thing I found. It's in Fedora's repos (I believe Ubuntu's too) so a simple `yum install iftop` resolved the deps for me with everything.

To run that, a:

iftop -i wlan0

(or whatever your interface is) would start that monitor. The listening would probably require you to sudo before that.


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