Dear Kevin, > Obviously it has to at least try the others occasionally to check it’s made > the correct choice. But I’m seeing dnsmasq make the same request to *ALL* > servers quite frequently and am curious as to why?
dnsmasq is trying all servers quite frequently, either every 50 queries or 10 seconds (whatever happens first) if I'm not mistaken. This fits well to your observation. I changed this locally to checking every 1000 queries (or every 10 minutes) and this is working great (I compile dnsmasq from source). Best, Dominik On 15.05.2018 17:27, Kevin Darbyshire-Bryant wrote: > This is one of my classic ‘look in a logfile…. hmmmm’ moments. > > dnsmasq is configured with 4 upstream resolvers, google, both IPv4 & 6. > Manpage states: > > -o, --strict-order > By default, dnsmasq will send queries to any of the upstream servers it knows > about and tries to favour servers that are known to be up. Setting this flag > forces dnsmasq to try each query with each server strictly in the order they > appear in /etc/resolv.conf > --all-servers > By default, when dnsmasq has more than one upstream server available, it will > send queries to just one server. Setting this flag forces dnsmasq to send all > queries to all available servers. The reply from the server which answers > first will be returned to the original requester. > > I have neither of these flags set, so I’d expect dnsmasq to choose one of the > servers, hopefully the fastest and stick with that. Obviously it has to at > least try the others occasionally to check it’s made the correct choice. > But I’m seeing dnsmasq make the same request to *ALL* servers quite > frequently and am curious as to why? > > > Cheers, > > Kevin D-B > > 012C ACB2 28C6 C53E 9775 9123 B3A2 389B 9DE2 334A > > > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
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