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To: Mark Andrews <marka@isc.org>
Cc: bloat@lists.bufferbloat.net
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From: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
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Date: Thu, 27 May 2021 05:11:41 +0200
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Subject: Re: [Bloat] Educate colleges on tcp vs udp
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Hi Mark,

On 27.05.21 00:44, Mark Andrews wrote:
>> On 24 May 2021, at 04:47, Erik Auerswald <auerswal@unix-ag.uni-kl.de> wrote:
>> Especially if the response needs to be larger than the request,
>> e.g., with DNS, a response rate limit should be applied.
> 
> DNS supports authentication of clients, be it DNS COOKIE, TSIG or
> SIG(0).  If your DNS clients are not using one of these you should
> contact the vendor and request a update.

Most modern DNS server software, including ISC's BIND, implements
response rate limiting.

Thanks,
Erik