[Pdns-users] problem with qmail and powerdns

bert hubert bert.hubert at netherlabs.nl
Sat May 27 15:13:01 UTC 2006

Please tcpdump qmail talking to the pdns recursor, it is hard for me to
solve otherwise.


On Thu, May 25, 2006 at 03:04:21PM +0200, Jeroen wrote:
> Stephen Harker wrote:
> >Jeroen wrote:
> >  
> >>Hi All, Bert,
> >>
> >>Since I upgraded our pdns-recursors from 3.0.1 to 3.1.1 I noticed
> >>problems with the qmail-mta.
> >>
> >>Qmail has trouble resolving hostnames with the new recursor (deferral:
> >>CNAME_lookup_failed_temporarily._(#4.4.3)/)
> >>And it isn't just one server that is complaining, I checked several and
> >>they all have this problem. I changed back our recursors to version
> >>3.0.1 and the problem is solved.
> >>
> >>The recursors resolve fine if I test them with Dig or nslookup. It could
> >>for sure be a qmail problem, but I don't think that major changes in
> >>behavior are planned in minor version updates, right?
> >>If one needs more info, I'm fine sharing it.
> >>    
> >
> >I have found exactly the same problems here. I am going to have to
> >switch back to the djbdns recursor in the interim until we can find out
> >what's wrong.
> >
> >Regards,
> >
> >Stephen
> >  
> Hi Stephen,
> 3.0.1 works great, so there is no real need to fall back to djbdns I 
> believe.
> The problem is in 3.1.1 as far as I can tell, I have tested several 
> recursors in the past and haven't seen this qmail-behavior before.
> It's not up to me to warn or advise others about this, but I think it 
> would be smart to fall-back to 3.0.1 if you use qmail in your network, 
> until Bert replies about this.
> That could take a bit today, since everybody has a day off in the 
> Netherlands.
> Kind regards,
> Jeroen
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