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Accepted
Saqib Ali
Asked: 2013-01-31 12:40:08 +0800 CST

Get a list of network connections my machine is making

  • 772

On Ubuntu, how do I get a list of network connections my computer has made in the last few days? Is there a easy way to do this?

networking

2 Answers

  1. Best Answer

    You can't get ended connections unless you were logging them. To get the current connections:

    # sudo netstat -tupn

    This will show the current opened source and destination ports with IPs.

    To get more details about the contents of the connections, install tcpdump if it's not installed and run:

    # sudo tcpdump -X -i eth0

    And you can run that in the background and write the output to a file.

    • 33

  2. If you are loooking for a list of ports you can use:

    netstat -tupn | grep -E ":(22|80|8000) .*"

    or

    netstat -tupn | grep -E ":(22|80|8000) .*ESTABLISHED"
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