On Aug 1, 2011, at 9:22 AM, Mark Andrews wrote: > And even if DNS/TCP was use by default machines can still get DoS'd because > IP is spoofable.
They can be DDoSed with spoofed or non-spoofed packets, and there are defenses against such attacks. Apologies if I was unclear - my point was that huge, crushing, multi-gigabit-per-second DNS reflection/amplification attacks would no longer be possible with a TCP-only DNS, and that there would be other benefits, as well. Large-scale testing of TCP-only DNS would be quite informative, IMHO. ----------------------------------------------------------------------- Roland Dobbins <rdobb...@arbor.net> // <http://www.arbornetworks.com> The basis of optimism is sheer terror. -- Oscar Wilde
