[dns-operations] Mozilla Firefox and ANY queries

Jonathan Stewart jonathan.stewart at gmail.com
Sat Feb 28 00:11:16 UTC 2015


On Fri, Feb 27, 2015 at 1:23 AM, bert hubert <bert.hubert at netherlabs.nl>
wrote:

> On Fri, Feb 27, 2015 at 12:02:57AM -0500, Sadiq Saif wrote:
> > Hi all,
> >
> > Checking local resolver logs and am seeing a large amount of ANY queries
> > originating from Firefox, is anybody else seeing such behavior?
>
> Well this would be unfortunate since 'any' queries are not guaranteed to do
> anything useful on resolvers. It might return nothing, or only some things.
>
Bert, which RFC would tell me how ANY queries ought to be used and treated?

Jonathan

>
> I'll poke some of my Mozilla friends to see what they think.
>
> I've also anecdotally heard that this is triggering TC=1 responses in some
> places which the home gateway then does not understand, leading to _no_
> answer.
>
>         Bert
>
> >
> > Firefox version 36.0 on Windows 8.1
> > Local resolver is Unbound 1.4.22.
> >
> > Feb 27 04:57:54 unbound[1405:1] info: 10.0.0.100
> > googlemail.l.google.com. ANY IN
> > Feb 27 04:57:54 unbound[1405:2] info: 10.0.0.100
> > googlemail.l.google.com. ANY IN
> > Feb 27 04:58:05 unbound[1405:0] info: 10.0.0.100 clients.l.google.com.
> > ANY IN
> > Feb 27 04:58:05 unbound[1405:2] info: 10.0.0.100
> > googlemail.l.google.com. ANY IN
> > Feb 27 04:58:15 unbound[1405:1] info: 10.0.0.100
> > googlemail.l.google.com. ANY IN
> >
> > Amongst others.
> >
> > --
> > Sadiq Saif
> > https://staticsafe.ca
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> >
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-- 
     Jonathan
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