[atlas] Problems with DNS measurements and NSID

Hi Daniel,

On 20/05/14 17:47, Daniel Quinn wrote:
> On Tue 20 May 2014 17:08:47 CEST, Klaus Darilion wrote:
> In some cases, DNS results /can/ contain multiple responses. In an
> effort to maintain consistency for all DNS results, we opted to treat
> all DNS results as if they contain a list of responses — even if that
> list is of only one response. This makes it easier to write scripts that
> make use of the object, since you always have a consistent data type in
> |parsed_result.responses|.
I was actually wondering about this myself.  What DNS packet would
contain multiple responses, considering that the response object relates
to the message(s)[1] and not the individual sections.  The RFC doesn't
explicitly state that a transaction will only contain one message
however I can't think of a situation one would send multiple messages.
I suspect it is invalid  and suspect or would break some implementations
one where to try.

Thanks John
[1]http://tools.ietf.org/html/rfc1035#section-4