Invalid lan. and local. TLDs

John Horne john.horne at plymouth.ac.uk
Sat Aug 29 20:49:44 UTC 2009


On Sat, 2009-08-29 at 13:24 +1000, Mark Andrews wrote:
> In message <twig.1251478975.23669 at swcp.com>, "Bill Larson" writes:
> > John Horne <john.horne at plymouth.ac.uk> said:
> > 
> > > Hello,
> > > 
> > > I noticed one of the root servers stats
> > > ( http://stats.l.root-servers.org/cgi-bin/dsc-grapher.pl?
> > window=604800&plot=qtype_vs_invalid_tld&server=L-root ) of queried invalid 
> > TLDs, as at the moment we have no 'local.' or 'lan.' zones configured. 
> > Hence, any such queries from us go out to the Internet (sorry).
> > > 
> > > I gather that these zones are used by MS and MAC servers to some extent,
> > > so I am wondering if it would be better to simply create an empty zone
> > > or one with a wildcard in it? Or does it make any difference? (I have no
> > > idea what the zones are used for.)
> > 

> 
> Or one can just configure your recursive server as a stealth slave
> of the root zone.   You make a qery every hour or so and transfer
> it twice a day.
> 
Many thanks for this. An interesting solution! I notice that this very
question came up in 2004
(https://lists.isc.org/pipermail/bind-users/2004-December/054202.html),

and note the concerns about NOTIFY. I am first going to install dnstop
to see exactly what is going on.


Thanks,

John.

-- 
---------------------------------------------------------------
John Horne, University of Plymouth, UK  Tel: +44 (0)1752 587287
E-mail: John.Horne at plymouth.ac.uk       Fax: +44 (0)1752 587001




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