Full Disclosure mailing list archives

Re: Possible DNS compromise/poisoning?


From: Florian Weimer <fw () deneb enyo de>
Date: Wed, 05 Jan 2005 19:12:43 +0100

Is anyone else seeing this:

--SNIP--
;; QUESTION SECTION:
;www.microsoft.com.             IN      A

;; ANSWER SECTION:
www.microsoft.com.      2415    IN      CNAME
www.microsoft.com.nsatc.net.
--SNIP--

Notice that www.microsoft.com is a cname for
www.microsoft.com.nsatc.net.  It's not limited to www.microsoft.com
and to the best of my knowledge the correct web content is
displayed.

AFAIK, this is a side effect because Microsoft uses Savvis' content
distribution network.

This is by no means a recent change.  It's been this way since last
June, probably much longer (I haven't got older data).
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