On 28.11.12 18:38, Tony Finch wrote:
Yes it does. For example, have a look at responses to queries for
dotat.at
in mx for various buffer sizes and observe that RRsets are dropped but
the
TC bit is not set.
On 11/30/2012 01:30 PM, Matus UHLAR - fantomas wrote:
Nice to see. I'm seeing recommendations to set minimal-responses to avoid
truncation problem anywhere and I'd like to have documented somewhere that
it just won't help...
On 03.12.12 09:41, Gilles Massen wrote:
Truncation happens only if the ANSWER section is too large, and as
minimal-responses only affects AUTHORITY and ADDITIONAL the effect on
truncation should be null.
I'm curious if there's any case where the AUTHORITY section is needed to
proper function of DNS. I think I've seen reports about truncaetd responses
with AUTHORITY section added ... maybe intermediate firewall or
loadbalancer truncating them...
For UPD fragmentation it is an entirely different matter, of course. But
should default settings really be optimized to accomodate broken firewalls?
default or non-default, if weare behind firewall or loadbalancer, we should
know when they cause troubles.
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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