How to see who loads the Internet ???

Question

linux

Good evening!
I apologize if similar questions have already been asked.

The point here is how to organize control over the use of the Internet. those. see who is currently loading the Internet / usage statistics
Internet access is via a Linux-based gateway
. I would also like to watch admins, a transparent proxy is also no longer available.
Tell me how you can organize this
, it would not be bad to look sometimes, ip address and how the channel loads

Answer 1

I am using iftop.
https://habr.com/en/post/114082
Traffic monitoring?

Answer 2

trafstat/trafd if he is still alive.
Or any traffic collector based on netflow.
But you need to understand that netflow only gives source and destination IP addresses and the amount of data transferred. This is not a very digestible statistic, so the problem statement will most likely need to be reconsidered.

Answer 3

netstat -utopa- will show the local address (computer name) of the one who is using the network NOT in real time .

Screen

iftop- real-time displays the local address (computer name), which sites are open, how much data is received and transmitted. Install sudo apt install iftop. To monitor only the desired network interface, find out the name of the interface using the command ifconfig. Then enter sudo iftop -i название интерфейса. Examplesudo iftop -i wlk30

Screen

nethogs- shows in real time what programs are using the network and how much data they receive or send. It will also show the username. You must run the command through sudo nethogsInstall nethogssudo apt-get install nethogs

Screen

Answer 4

nethogs- exactly what is needed in this situation

Answer 5

trafshow
iftop
tcpdump
In any case, you need to write individuality yourself on the basis of ready-made utilities. And then all this can be driven into zabbix into graphics. You will hardly find a finished product, right for your needs.