[dns-operations] Program/library/framework for testing robustness of servers

[Mark Andrews]

You use a fuzzing framework.  You seed the fuzzer with legal messages and let it
generate other inputs but modifying those seeds.

> On 20 Jun 2022, at 17:14, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
> 
> I maintain an experimental authoritative DNS server and I would like
> to test its robustness. dnsperf and flamethrower are great to test its
> performance, zonemaster and dnsviz are perfect to test its correctness
> in face of legal input but I would like to see how it reacts to
> *illegal*, malformed input. (An example of such input is
> <https://lists.dns-oarc.net/pipermail/dns-operations/2022-May/021657.html>.)
> 
> Since most DNS libraries are made to prevent the programmer for
> issuing illegal DNS requests, it is not obvious to write such a test.
> 
> Are you aware of libraries / programs / frameworks to exercice, in a
> hard way, the robustness of a server?
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org