[dns-operations] Many dns queries to a.root-servers.net
dougb at dougbarton.us
Thu Mar 1 20:27:52 UTC 2012
one lookup every 2 minutes sounds like a monitoring tool checking for
outside world connectivity.
On 3/1/2012 11:21 AM, Dario Aguilar wrote:
> Hi Heather, these queries reach our resolvers all day for at least more
> than 1 year and have been increasing over time. Not all customers
> consult every 2 seconds, some do it less frequently but steadily.
> On Thu, Mar 1, 2012 at 3:04 PM, Schiller, Heather A
> <heather.schiller at verizon.com <mailto:heather.schiller at verizon.com>> wrote:
> Warm up for later this month? Is it every 2 seconds continuously or
> intermittently? When did it start?
> -----Original Message-----
> From: Dario Aguilar [mailto:dariojaguilar at gmail.com
> <mailto:dariojaguilar at gmail.com>]
> Sent: Friday, January 13, 2012 4:34 PM
> To: dns-operations at lists.dns-oarc.net
> <mailto:dns-operations at lists.dns-oarc.net>
> Subject: Many dns queries to a.root-servers.net
> Hi, I'm seeing quite a lot of queries for "a.root-servers.net
> <http://a.root-servers.net>IN A" in the logs of my caching servers.
> They seem to be coming from home normal DSL customers (IPs who would
> be expected to be using the name servers) with each sending one
> query every 2 seconds.
> They all together represents more than de 10% of the total queries.
> I am guessing it is probably some sort of
> version but I was wondering if anyone knows offhand?
If you're never wrong, you're not trying hard enough
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