Great Suggestion for the DNS problem...?

Tony Finch dot at dotat.at
Tue Jul 29 08:41:13 CDT 2008


On Mon, 28 Jul 2008, Colin Alston wrote:
>
> In fact, why *don't* implementations discard authoritative responses
> from non-authoritative hosts? Or do we? Or am I horribly wrong?

The response is spoofed so that it appears to come from the correct host.

> There's an argument that IP spoofing can easily derail this, but I'd shift
> that argument higher up the OSI, blame TCP, and move on to recommending SYN
> cookies.

DNS uses UDP.

Tony.
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