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1

how to display the actual network traffic (wireless) in a terminal?

Additionally: Is it possible to add this info to the chart of top?

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6 Answers

up vote 7 down vote accepted

Some other nice tools in the Ubuntu repositories for command line bandwidth monitoring:

bmon - shows multiple interfaces at once

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slurm - has nice colored graphs

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tcptrack - A favorite. Tells how much bandwidth is being used and also what protocol (service/port) and destination the transmission is taking place to. Very helpful when you want to know exactly what is using up your bandwidth

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up vote 2 down vote

Install ’vnstat’ it can show traffic for an interface. You can install some plotting packages to get some nice graphs.

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up vote 1 down vote

Also you could use iftop utility

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up vote 1 down vote

It's quite easy! install "iftop" with:

    sudo apt-get install iftop

Then run

    sudo iftop

from any terminal!

Enjoy!

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up vote 1 down vote 
tcpdump -i eth0

That will give you a streaming information of all the data flowing from that interface (your ethernet card). Similar to wireshark.

Use ifconfig to see a list of your machines interfaces.

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up vote 0 down vote

I think ifconfig [interface] will do that. Like:

gevorg@gevorg-TravelMate-3260:~$ ifconfig wlan0
wlan0     Link encap:Ethernet  HWaddr 00:18:de:89:52:71  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

gevorg@gevorg-TravelMate-3260:~$ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:16:36:bf:92:e3  
          inet addr:192.168.10.100  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe80::216:36ff:febf:92e3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:342765 errors:0 dropped:0 overruns:0 frame:0
          TX packets:306183 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:373934806 (373.9 MB)  TX bytes:39111569 (39.1 MB)
          Interrupt:16

It shows RX bytes:73934806 (373.9 MB) and TX bytes:39111569 (39.1 MB).

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but this is only the over-all statistic for this session. I would see if the connection is active or not. – IndexOutOfBoundsException Feb 17 at 10:38
1  
netstat -t -u -c ? – geoh Feb 17 at 10:41

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