On Fri, Aug 22, 2008 at 01:40:05PM -0500, Kenneth Marshall wrote: > On Fri, Aug 22, 2008 at 07:42:31PM +0200, bert hubert wrote: > > On Fri, Aug 22, 2008 at 12:30:36PM -0400, Steve Chapman wrote: > > > I'm working in an environment that uses split DNS (some parentcompany.com > > > servers we want resolved from corporate DNS servers, others from Internet > > > DNS servers). I've installed the pdns-recursor RPM (3.1.7-1) on my RHEL 5 > > > bind DNS server and configured the recursor, all defaults except: > > > > Very good! > > > > > If I run an "nslookup Server2.parentcompany.com <IP of Corporate DNS > > > server>", I get a valid IP address, and then if I subsequently re-run the > > > nslookup against the PDNS Recursor, it provides the answer from then on. > > > Why isn't it providing the answer initially? Any ideas would be helpful. > > > > The reason is that PowerDNS is expecting you to forward queries to an > > authoritative server. > > > > It appears you are forwarding them to a server that is not authoritative for > > Server2.parentcompany.com, but is in itself a caching resolver. > > > > PowerDNS is sending so called 'non-recursion desired' questions to your > > internal nameserver, and this internal server is therefore not recursing for > > your questions. > > > > Once you've triggered the internal server to look the question up, it keeps > > the answer in the cache. > > > > The second time PowerDNS asks, no recursion is needed, since the answer is > > there already. > > > > I'm not sure what to do now - it might be good for PowerDNS to set the 'rd' > > bit in forwarded queries. > > > > Any ideas? > > > I vote for setting the 'rd' bit in the forwarded queries. That certainly > best fits the behavior that I was expecting to see. > Maybe add a seperate option like this ?:
forward-zones-with-rdbit= ? recurse-forward-zones= ? > Regards, > Ken > _______________________________________________ > Pdns-users mailing list > Pdns-users@mailman.powerdns.com > http://mailman.powerdns.com/mailman/listinfo/pdns-users > _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users