[dns-operations] Getting rid of ISP's recursive DNS servers? (Was: Eircom "DNS Attacks" ?

Mark Andrews marka at isc.org
Tue Jul 21 00:26:26 UTC 2009

In message <20090720090344.GG11491 at giscard.mcbone.net>, Stefan Schmidt writes:
> On Mon, Jul 20, 2009 at 10:46:02AM +0200, Stephane Bortzmeyer wrote:
> > > To your footnote, does anyone have supporting evidence that web
> > > browsing is the biggest use of DNS?
> > 
> > We have ample evidence of the opposite. For instance, almost half of
> > the DNS requests to the .FR authoritative name servers have query type
> > MX.
> I shall gather that data again for i am not running qtype stats on our
> recursives at the moment, but last time i checked it was more like 75%
> IN A queries.
> I can only assume that MX records are queried more frequently for
> otherwise stale domains or DNS usage in general has changed very rapidly
> over the last few months. It might also be that our broadband customers
> are not all that worm/malware infested like others but that would really
> surprise me. ;-)
> 	Stefan
> -- 
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	Nothing strange here.  Different measuring points with
	different client populations.

Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org

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