[Pdns-users] CNAME pointing to URL forwarding record
leen at consolejunkie.net
Thu Mar 31 11:17:53 UTC 2011
On 03/31/2011 11:42 AM, Anthony Eden wrote:
> On Thu, Mar 31, 2011 at 11:32 AM, Leen Besselink
> <leen at consolejunkie.net <mailto:leen at consolejunkie.net>> wrote:
> On 03/31/2011 09:18 AM, Anthony Eden wrote:
> > On Wed, Mar 30, 2011 at 2:28 PM, Stefan Schmidt
> <zaphodb at zaphods.net <mailto:zaphodb at zaphods.net>
> > <mailto:zaphodb at zaphods.net <mailto:zaphodb at zaphods.net>>> wrote:
> > Hi Anthony,
> > On Wed, Mar 30, 2011 at 10:22 AM, Anthony Eden
> > <anthonyeden at gmail.com <mailto:anthonyeden at gmail.com>
> <mailto:anthonyeden at gmail.com <mailto:anthonyeden at gmail.com>>> wrote:
> > When I point a CNAME record to a URL forwarding record
> > PowerDNS returns a SERVFAIL for the CNAME query when I go
> > through a resolver. If I dig directly against the
> > authoritative server it works just fine. Any suggestions on
> > how I can fix this, other than just replacing the CNAME with
> > another URL
> Actually, if you use dig and pay really close attention you should see
> you request www.wemakednssimple.com
> <http://www.wemakednssimple.com> <http://www.sunnybliss.com>
> But it returns wemakednssimple.com <http://wemakednssimple.com>.
> without the www. Which is wrong. A
> recursor will recognise this and just ignore that part of the answer
> (there is nothing else in the answer so you get nothing).
> I don't know what the cause is, but this is the result and why it
> doesn't work.
> I wonder if setting skip-cname to yes would solve the problem and if
> so, what are the implications of doing so?
I wouldn't know. Seems to be a bug/issue the way it is.
I suggest you try it on a test-machine or something like that and try to
fix it there.
Maybe just change the settings of 1 server out of the 4 and drop packets
from other IP-addresses other then your recursor for a few seconds, so
they don't cache something which is wrong.
> Anthony Eden
> http://anthonyeden.com | twitter: @aeden | skype: anthonyeden
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