How can I monitor outbound traffic from my Linode?

Linode Staff

The outbound traffic from my Linode is very high and I would like to know more about the traffic. What commands or logs can I check?

1 Reply

One good way to check the current outbound traffic on your Linode is the following command:
sudo netstat -nputw

If you find that most of the traffic is HTTP, you can find more information by tcpdumping the traffic for a bit.

Step 1: Start dumping the traffic
sudo tcpdump -i any -w /tmp/http.log &

Step 2: Run your application or test your webpage

Step 3: Stop tcpdump
sudo killall tcpdump

Step 4: read the log file
sudo tcpdump -A -r /tmp/http.log | less

You may want to look over Daniel Miessler's tcpdump Primer with Examples for more information on tcpdump and the wealth of options available.


Please enter an answer

You can mention users to notify them: @username

You can use Markdown to format your question. For more examples see the Markdown Cheatsheet.

> I’m a blockquote.

I’m a blockquote.

[I'm a link] (

I'm a link

**I am bold** I am bold

*I am italicized* I am italicized

Community Code of Conduct