Rodrigo Reyna <usesforskypeo...@gmail.com> wrote:
> I don't know how to confirm [Pipelined TCP queries(RFC7766)].
> Specifically, please tell me if there is a method to check with the command
> such as dig for the server on which BIND 9.11 is running.
`mdig` comes with BIND and does multiple concurrent queries, so you can
check pipelining behaviour like this:
$ rndc flush; mdig +tcp +noall +answer @::1 \
www.melbourne.edu.au \
www.u-tokyo.ac.jp \
www.uonbi.ac.ke \
www.puc-rio.br \
web.mit.edu \
www.cam.ac.uk
A good selection of sites near and far should nicely demonstrate
out-of-order replies. If you don't flush the cache first then you'll get
the answers in an effectively random order.
For years I have used `adns` for bulk concurrent queries, and it's really
good at pipelining queries over a TCP connection.
> The other is about [DNSCOOKIE].
Dunno this one I'm afraid.
Tony.
--
f.anthony.n.finch <d...@dotat.at> http://dotat.at/
a fair, free and open society
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