[atlas] Problems with DNS measurements and NSID
john mail at johnbond.org
Wed May 21 00:21:18 CEST 2014
On 20/05/14 19:29, Philip Homburg wrote: > The 'normal' mode for DNS queries is that they get sent to one server. > So you would get one reply each time the measurement is performed. > > The exception is when the measurement is to query the probe's local DNS > resolvers. In that case, up to three resolvers are queried and you can > get as many replies. > > In the past, each replies would be an independent Atlas result. However, > our storage back-end cannot really handle that. So the code was changed > that all three replies are grouped into a single Atlas result. > > Hence, in general, an Atlas DNS result can contain multiple DNS replies. > But only if you select the 'use the probe's local resolvers' option. Thanks for the clarification Philip. good to know.