Best practice on TCP replies for ANY queries

Alain Hebert ahebert at
Thu Dec 12 20:27:19 UTC 2013

    The internet will be better without ISP refusing to apply BCP38.

    <end of comment>

    This is a pointless argument since the majority of the industry
prefer going after the <flavor of the month> UDP flood instead of
curbing the problem at its source once and for all.

Alain Hebert                                ahebert at   
PubNIX Inc.        
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911    Fax: 514-990-9443

On 12/12/13 11:23, SiNA Rabbani wrote:
> The Internet will be a better place with less open resolvers around.
> --SiNA
> On Dec 12, 2013 5:32 AM, "Tony Finch" <dot at> wrote:
>> Anurag Bhatia <me at> wrote:
>>> Now I see presence of some (legitimate) DNS forwarders and hence I don't
>>> wish to limit queries.
>> You are going to have to change your mind about this one. Open recursive
>> resolvers are a really bad idea, unless you can afford a lot of time and
>> cleverness to manage the abuse. Get your users to choose a more
>> appropriate name server, and restrict your name server to your local
>> networks.
>> Tony.
>> --
>> f.anthony.n.finch  <dot at>
>> Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at
>> first.
>> Rough, becoming slight or moderate. Showers, rain at first. Moderate or
>> good,
>> occasionally poor at first.

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