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

Shannon Weyrick sweyrick at ns1.com
Mon Jun 20 16:43:37 UTC 2022

Flamethrower does include random packet and random qname generators (which
may include nonprintable characters), which were made for this type of
testing: https://www.mankier.com/1/flame#Generators-randompkt

Shannon Weyrick

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On Mon, Jun 20, 2022 at 9:20 AM Stephane Bortzmeyer <bortzmeyer at nic.fr>

> 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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