On Thu, Jul 24, 2014 at 10:44:29AM -0700, Dave Warren <[email protected]> wrote a message of 29 lines which said:
> From what I understand, when 1.1.1.1 fails to respond, all of > a.example.net will be considered bad, so 2.2.2.2 and 3.3.3.3 won't > be queried at all, and a resolver will return a SERVFAIL. Is there somewhere a survey of the behavior of the various resolvers, in this situation? Because my guess is the opposite of yours: resolvers will try all the addresses, following RFC 1034, section 5.3.3: Step 3 sends out queries until a response is received. The strategy is to cycle around all of the addresses for all of the servers with a timeout between each transmission. In practice it is important to use all addresses of a multihomed host, [...] _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
