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Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-edns-tags-00.txt

Petr Špaček <petr.spacek@nic.cz> Thu, 07 March 2019 16:57 UTC

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Date: Thu, 07 Mar 2019 17:57:46 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dnsop/I4JhagtHNmRlFu3gj88TuHeeTLU>
Subject: Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-edns-tags-00.txt
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On 05. 03. 19 7:26, Wes Hardaker wrote:
> Mark Andrews <marka@isc.org> writes:
> 
>>> Yes, and that's where I see a problem: when the software doesn't know
>>> the agreement has been severed.
>>
>> Presumably you won’t get back a server tag and you can log that.
> 
> No you may get back a server tag, and you're equally as likely to
> misinterpret it just as the server misinterpreted your client tag.
> Sure, *sometimes* (many times even) it will cause a parse error.  It's
> the cases that don't cause parse errors that concern me.  What if the
> client and server *think* they understand each other, but actually are
> doing very different things because one side of the "agreement" is no
> longer acting the same way.

Like this one?
https://dougseven.com/2014/04/17/knightmare-a-devops-cautionary-tale/

-- 
Petr Špaček  @  CZ.NIC

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