[dns-operations] debug tool to generate DNS response?

Yang Yu yang.yu.list at gmail.com
Sat Jan 27 18:31:31 UTC 2018

I am looking for a DNS server/debug tool that can respond to selected
queries with a crafted (potentially broken) response, like BadSSL for
DNS. Ideally all flags/codes should be customizable. This is quite
helpful for testing DNS clients.

For example, aaaa-servfail.example.org returns NoError for A but
ServFail for AAAA.



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