Hi Wouter, On Monday, 18 May 2015 16:14 +0200, W.C.A. Wijngaards wrote:
> > I've got a question how queries are distributed to forward > > resolvers. > > > > In this example, I've defined that all queries, which can't be > > answered from the cache, are forwarded to Google's DNS servers: > > > > forwared-zone: name: "." forward-addr: 8.8.8.8 forward-addr: > > 8.8.4.4 > > > > How are the queries distributed between 8.8.8.8 and 8.8.4.4? Are > > all queries going to 8.8.8.8 because it's the first one, are they > > distributed via round-robin or is the one with the lowest response > > time getting the most of the queries? > > Initially at random. Then, once the response time is known, one of > the fastest ones. It picks one at random from the "RTT band", so > small differences in response time do not matter. If ping time to > those two IP addresses is roughly similar, then it'll end up as a > 50/50 split. > > There is a lot more logic, mostly for interoperability with > malconformant servers or servers with DNSSEC-bogus content. But for > this example that would not make a difference. Thanks a lot for the quick reply. :-) Ihsan -- [email protected] http://blog.dogan.ch/ _______________________________________________ Unbound-users mailing list [email protected] http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users
