Re: Large number of DNS probes in last 24 hours

From: Michael Still (no email)
Date: Mon Jun 02 2008 - 18:36:54 EDT

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    Jim Wise wrote:
    > On Fri, 30 May 2008, Michael Still wrote:

    >> I have seen PlanetLab experiments doing this. What are the originating
    >> IP addresses?
    >
    > Three observed source addresses
    >
    > 208.78.169.237
    > 204.11.51.62
    > 194.199.24.101
    >
    > Source ports are high and non-repeating. Other than the domain root,
    > A-record queries for "google.com" and for hostnames which appear to be
    > on the same subnet as the querying host.

    Hmmm. All the PlanetLab nodes should have valid reverse DNS, which isn't
    the case here, so I guess it is something more malicious.

    Mikal


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