[Sysadmins] Eircom DNS

Conall O'Brien conall at conall.net
Wed Jul 8 08:42:37 IST 2009


2009/7/8 Colm MacCárthaigh <colm at allcosts.net>:
> Probably old news to most here, but;
>
> http://news.google.ie/news?q=eircom%20DNS
>
> with the somewhat odd explanation at:
>
> http://support.eircom.net/
>
> I'm on eircom, but have been running my own resolver for a while now,
> so didn't notice. But would be interested if anyone noticed any actual
> interesting details or recorded any queries. (for example, if answers
> were being spoofed - were the TTLs being crafted to be very large?).
>
> (there's no point in speculating as to potential causes without any
> definitive details, no doubt eircom would not like that).

I saw one article recommending OpenDNS as a fix, which made me sad.


OpenDNS have an annoying habit of announcing some DNS zones as
authoritative. eg google.com results from their servers point to
transparent OpenDNS proxies. You don't know what's being logged, etc

-- 

Conall O'Brien



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