I guess that might because I don't wipe out the cache rightly. I use "rec_control wipe-cache ." to wipe out the cache for root server. Does this will clear the cache rightly?
On Tue, Dec 23, 2014 at 3:38 PM, bert hubert <bert.hub...@netherlabs.nl> wrote: > On Tue, Dec 23, 2014 at 11:08:39AM +0800, Davey Song wrote: > > I am doing a test on priming exchange from different DNS software’s and > > find something weird. BIND(v9.8.1, v9.9.4, v9.10.1 ) would send NS query > > and a query simultaneously rather than wait until NS query get answered. > > PowerDNS(v3.3) will not do any NS query but query base on the content in > > hint file when root-hint is configured. Does anyone know any > consideration > > or risk of these implementation? > > Davey, > > As far as I know, that isn't what we do: > > Dec 23 08:36:41 .: Resolved '.' NS d.root-servers.net. to: 199.7.91.13 > Dec 23 08:36:41 .: Trying IP 199.7.91.13:53, asking '.|NS' > Dec 23 08:36:41 .: Got 28 answers from d.root-servers.net. (199.7.91.13), > rcode=0 (No Error), aa=1, in 127ms > > We pick the initial 'hint' of root IP addresses from either a hints file > or a baked in hints array. > > Bert > > -- > PowerDNS Website: http://www.powerdns.com/ > Contact us by phone on +31-15-7850372 >
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