DNS poisoning

[Saeed Abu Nimeh <drellman () hotmail com>]

Is there a way to do dns poisoning and make the poisoned server provide
legitimate queries when doing dns lookup. Example: Assume I am running a
poisoned dns server, when user X does lookup yahoo.com or dig yahoo.com
I reply with legit yahoo entries, however, when user Y does the same
thing I provide fake or spoofed entires.
Thanks,
Saeed

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