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Thread: dns cache poisoning?

  1. #1
    Join Date
    Dec 2012
    Location
    europa
    Beans
    107
    Distro
    Ubuntu Development Release

    Exclamation dns cache poisoning?

    So I was running netstat and everything appeared normal wih connections to canonical 91.189... and google 173....

    then I noticed that chromium also has a couple of connections to some strange 194... and 195... ip's that when traced back go to some 'diniz avilla' corporation


    really weird is this one : 195.8.11.76

    that displays the google search page but when I try to trace it back there's no mention that it's a google server or any mention of that IP anywhere in the web... all other google IP's point back to google

    I'm connected to my google account bu on this 195.8.11.76 fake google page I'm not


    how should I proceed?
    Last edited by nomenkultur; March 30th, 2013 at 05:56 PM.

  2. #2
    Join Date
    Mar 2013
    Beans
    30

    Re: dns cache poisoning?

    Run tcpdump or Wireshark until you catch this connection starting. If you don't know what to do from there you can scrub the output of any sensitive information, post it on pastebin.com, and then reply with the link to it.

  3. #3
    Join Date
    Mar 2013
    Beans
    30

    Re: dns cache poisoning?

    Run tcpdump or Wireshark until you catch this connection starting. If you don't know what to do from there you can scrub the output of any sensitive information, post it on pastebin.com, and then reply with the link to it.

    Does running "dig google.com" or "nslookup google.com" list that IP address for you?

    It could be this: http://en.wikipedia.org/wiki/Content_delivery_network
    Last edited by mharv; March 30th, 2013 at 07:01 PM.

  4. #4
    Join Date
    Mar 2006
    Location
    Williams Lake
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: dns cache poisoning?

    That ip address:

    Code:
    195.8.11.76
    belongs to PT Comunicacoes, S.A..

    When you find an unknown ip address, make sure you have whois installed, then open a terminal and type:

    Code:
    whois <ip address>
    That way at least you'll know where it originates.

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