[Pdns-users] NOTIFYs from dual stacked hosts

[Andy Smith]

Hi Bert,

On Thu, Feb 09, 2012 at 08:07:11AM +0100, bert hubert wrote:
> On Thu, Feb 09, 2012 at 06:48:54AM +0000, Andy Smith wrote:
> > On the pdns servers, the NOTIFY is received on both IPv4 and IPv6
> > addresses (verified with tcpdump), however in the logs all that is
> > seen is:
> > 
> >     pdns[13113]: Received NOTIFY for example.com from 2001:db8:1f1:f019::2 which is not a master
> 
> Hi Andy,
> 
> Can you double check that the IPv4 notification was sent to the right
> address? I wonder if the notification might have been caught by the packet
> cache, it has been known to do that kind of thing. 

Sorry, please ignore me, I made a mistake. I see this sort of thing:

Feb  9 08:49:09 chacha pdns[29964]: Received NOTIFY for example.com from 2001:db8:1f1:f019::2 which is not a master
Feb  9 08:49:09 chacha pdns[29964]: 1 slave domain needs checking, 0 queued for AXFR
Feb  9 08:49:09 chacha pdns[29964]: Received serial number updates for 1 zones, had 0 timeouts

So in fact I was getting distracted by the specific mention of
2001:db8:1f1:f019::2 and was not paying attention to the "1 slave
domain needs checking, 0 queued for AXFR" which I am now thinking is
pdns correctly responding to an UPDATE that it got from the IPv4
address it accepts as master.

It's too early, and I'm trying to diagnose an unrelated problem!

Cheers,
Andy