Unfortunately, this server was authoritative+recursive many years... It is used both clients and client domains :(
With NAMED was no such problem.
As a workaround (I'm not sure it's correct, but I like it) I changed a little function questionOrRecurse.
DLOG(L<<Logger::Warning<<"setting 'No Error'"<<endl);

replaced with

DLOG(L<<Logger::Warning<<"setting 'Refused'"<<endl);
r->setRcode(RCode::Refused);
return r;


10.02.2014 10:42, Peter van Dijk wrote:
Hello Vlad,

On 09 Feb 2014, at 14:46 , Vlad <vladsol2...@gmail.com> wrote:

I trying to use the PDNS Authoritative + Recursor as backend instead
BIND9 server :-)
I am almost happy, but there is a small problem ...
I want to get the behavior, like BIND: if a request is received from
an address that is not in allow-recursion list, respond Refused. But
now i getting empty answers with NOERROR... And, as i know, my dns
server listed in one of the "open resolvers" public list :-)
If the public list has an entry for you even though you respond with empty 
answers, that list is broken and you should send them a complaint.

For optimal control over the behaviour of your recursor, please do NOT run it 
behind an authoritative server. Once your recursor is running independently, 
you can use the allow-from* settings in recursor.conf, or even packet level 
filtering (like iptables) to make sure you don’t respond to queries.

Kind regards,



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