[dns-operations] .ORG website experiences intermittent DNS failure

Mark Andrews marka at isc.org
Tue Oct 1 01:08:24 UTC 2013


In message <alpine.LFD.2.10.1309302017350.13501 at bofh.nohats.ca>, Paul Wouters wr
ites:
> On Mon, 30 Sep 2013, Catherine Burdon wrote:
> 
> > Website www.newmarketstageco.org experiencing DNS failure intermittently.=
> =A0 I have verified the DNS zone settings for the domain and all
> > are correct.=A0 From time to time the website will not be found, then sho=
> rtly thereafter will appear again.
> 
> Its nameservers ns1.securehost.com. and ns2.securehost.com give SERVFAIL
> for newmarketstageco.org for all record types. Unless that's some kind
> of ANYcast, I'm not sure why it would intermittently at all.

Only if you ask a recursive query.  If you ask a non recursive query
you get a referral.

What we should be asking is why are we allowing delegations to be
made to nameservers that are not configured to serve the delegated
zone in the first place.

What we should be asking is why delegations aren't regularly being
checked for consistancy as required by RFC 1034 and when inconsistancies
are found why are they allowed to persist for long periods of time.

Mark

> Paul
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-- 
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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