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Re: [DNSOP] broken compressed names, was A draft about the Name:Wreck problem draft-dashevskyi-dnsrr-antipatterns

John R Levine <johnl@taugh.com> Thu, 15 April 2021 15:39 UTC

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Date: Thu, 15 Apr 2021 11:39:39 -0400
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From: John R Levine <johnl@taugh.com>
To: Christian Huitema <huitema@huitema.net>
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Subject: Re: [DNSOP] broken compressed names, was A draft about the Name:Wreck problem draft-dashevskyi-dnsrr-antipatterns
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On Thu, 15 Apr 2021, Christian Huitema wrote:
>> Adding test vectors would help, especially broken vectors.
>
> +1. That would be a pretty good way for the IETF to help clean the mess. 
> That, and maybe a DNS site that would serve the test vectors.

In this case I think it's a reasonable idea but I echo jck's concern that 
test vectors can turn into de-facto standards, particularly when the tests 
and the text turn out not to exactly match.

On the other hand, is it valid for a DNS compression pointer to point 
forward in the message?  Why or why not?

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

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