[Pdns-users] DNS resolution problem with pdns-recursor-3.3

bert hubert bert.hubert at netherlabs.nl
Thu Apr 21 20:52:42 UTC 2011

On Thu, Apr 21, 2011 at 03:33:31PM -0500, Kenneth Marshall wrote:
> I am sorry, but I think this has been a wild goose chase regarding a
> bug in the recursor. The existing 3.3 version works just fine with
> resolving cdn4.digitalconcerthall.com from a system outside our
> network. I am going to start looking into a firewall or networking
> problem. Thank you for your assistance and I will let you know what
> I find and hopefully it will help someone else.

Thanks Kenneth - based on your traces, I thought this might be the case.

It starts with a clara.net server giving a truncated response, truncated in
mid-packet. This might upset a firewall somewhere.

Such truncation is often caused by.. powerdns authoritative server by the


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