On 25 June 2014 23:59, Roland Dobbins <rdobbins(a)arbor.net> wrote:
EDNS0 has been in pervasive use for something like 15
years, so it isn't
something new or exotic.
also noteworthy to mention is that Bind performing recursive DNS functions
will look at whether EDNS0 usage causes problems with individual resolvers,
and retry queries without EDNS0 if it suspects it could be a problem.
Long-term anyone operating an authoritative name-server which can't serve
EDNS0 (for what ever reason), is in for a bad time - DNSSEC necessitates
provides some highlights on Bind's behaviour.
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