[SECURITY] Application layer attacks/DDoS attacks
Roland Dobbins
rdobbins at arbor.net
Tue May 26 05:19:58 UTC 2015
On 26 May 2015, at 4:27, Randy Bush wrote:
> may i remind you of the dns query flood i had which you helped
> research?
> udp and tcp, from the same sources.
Yes - we determined that the TCP-based queries were a result of RRL,
which is optimized to help with spoofed reflection/amplification
attacks, but isn't intended to handle non-spoofed query-floods (hence
S/RTBH, flowspec, IDMS, et. al.) like the particular ANY query-flood
directed at your auths.
-----------------------------------
Roland Dobbins <rdobbins at arbor.net>
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