[GTER] Fwd: [dns-operations] "drool" DNS Replay tool, Beta availability announcement

[Rubens Kuhl]

Há uns tempos atrás alguém perguntou de solução de teste de performance
para servidores DNS... acaba de sair mais uma, o drool. Ele pega uma
sequência de pacotes capturados e repete as mesmas queries, só que muito
mais rapidamente, da casa de 200 mil requisições por segundo em UDP.

Para quem quer ver quanta pancada aguenta seu servidor DNS recursivo ou
autoritativo...


Rubens






Begin forwarded message:

*From: *Keith Mitchell <keith at dns-oarc.net>
*Subject: **[dns-operations] "drool" DNS Replay tool, Beta availability
announcement*
*Date: *March 24, 2017 at 4:18:48 PM GMT-3
*To: *"dns-operations at dns-oarc.net" <dns-operations at dns-oarc.net>

DNS-OARC is pleased to announce beta availability of a new tool for the
real-time replay of captured DNS traffic into a test environment,
"drool". This work has been generously funded by the Comcast Innovation
Fund's grant programme, for public open-source release.

drool can replay DNS traffic from packet capture (PCAP) files and send
it to a specified server, with the option to manipulate the timing
between packets, as well as loop packets infinitely or for a set number
of iterations. This tool is planned to produce a minimum of 200,000 UDP
packets per second and 10,000 TCP sessions per second on common hardware.

The purpose is to simulate Distributed Denial of Service (DDoS) attacks
on the DNS and measure normal DNS querying. For example, the tool could
enable you to take a snapshot of a DDoS and be able to replay it later
to test if new code or hardening techniques are useful, safe &
effective. Another example is to be able to replay a packet stream for a
bug that is sequence- and/or timing-related in order to validate the
efficacy of subsequent bug fixes. The full release will comprise a BSD
licensed software tool for UNIX systems along with documentation.

The beta code, along with build and usage instructions, will be
available from OARC's github repository from 25th March at:

https://github.com/DNS-OARC/drool

Testing and feedback from the community of this tool (developed by Jerry
Lundström) is encouraged.

OARC would like to thank Comcast for their project specification and
funding support of this work.

Keith Mitchell
DNS-OARC
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