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Re: [LUG] DNS and EDNS

 

On Tue, 2010-04-13 at 15:39 +0200, Juan J. Martínez wrote:
> 
> DNSSEC requires software in the server and in the client. If your client
> doesn't speak the extensions... it won't affect you at all :)
> 
Correct.

The article states that the root servers are only going to answer with
signed answers. That is not true, so querying a root server with a
non-dnssec enabled query will get you the same result as before. You can
already test this as the UK root has already been signed.

> Am I getting it totally wrong?
> 
No :-)

However, the article is correct in some respects. Some firewalls are
known to have a problem with the extend packet sizes of dnssec. We ran
some 'dig' commands, and the OARC ones, at work just in case... :-)

Cambridge Uni (cam.ac.uk) and ISC (isc.org) are already using DNSSEC so
querying some of their hosts, using a dnssec enabled resolver, might
show you whether you are going to have a problem or not as well.




John.

-- 
John Horne, University of Plymouth, UK
Tel: +44 (0)1752 587287    Fax: +44 (0)1752 587001


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