[SECURITY] Application layer attacks/DDoS attacks

Randy Bush randy at psg.com
Mon May 25 21:27:32 UTC 2015

>> Application layer DDoS attacks , in most (all?) cases require a valid 
>> TCP/IP connection
> DNS query-floods are a notable exception.

may i remind you of the dns query flood i had which you helped research?
udp and tcp, from the same sources.


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