lör 2010-05-22 klockan 17:04 -0600 skrev Alex Rousskov: > Is there an RFC or somesuch that recommends parallel lookups over > sequential ones or vice versa?
IIRC the RFC recommends AAAA lookup and only if that returns an empty respose then try A. But at least Linux does the lookup in parallel these days, and since we want the result of both and also cannot trust errors returned by the AAAA lookup there is not much reason to delay, and if we were to delay then the order should be A followed by AAAA unless the A lookup results in error. Regards Henrik
