[dns-operations] tld operators.. issues coming from

Bob Paolucci Bob.Paolucci at rci.rogers.com
Sat Jun 26 22:46:51 UTC 2010

Indeed. We've had asymmetirc routing issues that have bothered our dns servers in the past but this does not appear to be the case this time around. I've already sent this out to the cnr group for developer support. Community feedback is welcome. :)

----- Original Message -----
From: bert hubert <bert.hubert at netherlabs.nl>
To: Bob Paolucci
Cc: dns-operations at mail.dns-oarc.net <dns-operations at mail.dns-oarc.net>
Sent: Sat Jun 26 17:57:17 2010
Subject: Re: [dns-operations] Root operators.. issues coming from

On Sat, Jun 26, 2010 at 03:54:37PM -0400, Bob Paolucci wrote:
> The Rogers Communications Engineering group has recieved a complaint from .CA root operators that our resolvers are flooding them with queries.
> When we looked at some snoops from our dns servers regarding domains the
> root operator said we were sending multiple queries for, we saw a number
> of the domains with NS records that had longer TTL's than the
> corresponding glue in .ca causing glue to expire before the NS records, of
> course causing issue.


You may want to talk to the authors of your resolver software. They are in
the best position to study what is going on - short of networking issues.

The scenario as you describe does not sound like a likely cause of your
problem - perhaps something else is going on.

A networking issue might mean that your servers simply have a hard time
receiving answers from the .ca servers, and repeating queries a lot.


-------------- next part --------------

This e-mail (and attachment(s)) is confidential, proprietary, may be subject to copyright and legal privilege and no related rights are waived. If you are not the intended recipient or its agent, any review, dissemination, distribution or copying of this e-mail or any of its content is strictly prohibited and may be unlawful. All messages may be monitored as permitted by applicable law and regulations and our policies to protect our business. E-mails are not secure and you are deemed to have accepted any risk if you communicate with us by e-mail. If received in error, please notify us immediately and delete the e-mail (and any attachments) from any computer or any storage medium without printing a copy.

Ce courriel (ainsi que ses pièces jointes) est confidentiel, exclusif, et peut faire l?objet de droit d?auteur et de privilège juridique; aucun droit connexe n?est exclu. Si vous n?êtes pas le destinataire visé ou son représentant, toute étude, diffusion, transmission ou copie de ce courriel en tout ou en partie, est strictement interdite et peut être illégale. Tous les messages peuvent être surveillés, selon les lois et règlements applicables et les politiques de protection de notre entreprise. Les courriels ne sont pas sécurisés et vous êtes réputés avoir accepté tous les risques qui y sont liés si vous choisissez de communiquer avec nous par ce moyen. Si vous avez reçu ce message par erreur, veuillez nous en aviser immédiatement et supprimer ce courriel (ainsi que toutes ses pièces jointes) de tout ordinateur ou support de données sans en imprimer une copie. 

More information about the dns-operations mailing list