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Thread: tcpdump

  1. #1
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    tcpdump

    Can someone tell me how to view the http headers using tcpdump?

    sudo tcpdump -vvv -n port 80

    I can see the packets going back and for, but I want to inspect the http headers.

    thanks for any help

  2. #2
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    Re: tcpdump

    http://livehttpheaders.mozdev.org/

    This is one way I've found, it's still a bit clunky as it caches all headers, I wonder if I can configure it.

    Still would like to hear about how to make tcpdump do that if anyone knows.

  3. #3
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    Re: tcpdump

    in tcpdump, this gets real ugly. I have found a way to display the stuff, but it is near unreadable still...

    however, why use tcpdump ? i'd suggest wireshark. That has a nice gui, and displays the pakets properly... but then, i never really cared about the payload of anything...

    what do you need to see the http for anyway, and why do you need to get it out of the paket ?

    hope it helps
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  4. #4
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    Re: tcpdump

    Hi Space Teddy

    There's enough configuration options in livehhtheaders for this task.

    I'm developing a web application that is going to be accessing multiple google API's, seeing the live http headers is good for debugging.

    And there'll be lots of that



    Thanks for you tips mate.

  5. #5
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    Re: tcpdump

    Quote Originally Posted by vanderkerkoff View Post
    Hi Space Teddy

    There's enough configuration options in livehhtheaders for this task.

    I'm developing a web application that is going to be accessing multiple google API's, seeing the live http headers is good for debugging.

    And there'll be lots of that



    Thanks for you tips mate.

    ngrep may work for you.

    ngrep port 80 && www.google.com

    ngrep searchterm "port 80 && www.google.com"


    There is even an option to have it show empty packets.

  6. #6
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    Re: tcpdump

    ngrep is goooood

    thanks

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