Hi Gert,
no, we don't have such option. DENIC should fix their interface as their checks are
broken.
DNS is indeed case insensitive and Knot DNS does the unification for performance reasons.
One of the other values of unifying the case is a DNS compression making the DNS responses
smaller. You wouldn't be able to use DNS compression if you have inconsistent case
through the zone.
Cheers,
--
Ondřej Surý -- Technical Fellow
--------------------------------------------
CZ.NIC, z.s.p.o. -- Laboratoře CZ.NIC
Milesovska 5, 130 00 Praha 3, Czech Republic
mailto:ondrej.sury@nic.cz
https://nic.cz/
--------------------------------------------
----- Original Message -----
From: "Gert Doering" <gert(a)space.net>
To: knot-dns-users(a)lists.nic.cz
Sent: Wednesday, April 6, 2016 10:28:17 AM
Subject: [knot-dns-users] preserve case in labels?
Hi,
we're using knot DNS (2.0.2) on one of our primaries, to balance out
"BIND is used everywhere". So far, we're quite happy, but today I got
a complaint from our hostmaster team - triggered by a warning from DENIC
that "our SOA records are inconsistent".
Turns out they are, if you look at uppercase/lowercase...
$ dig +short @ns.space.net
space.net soa
ns.space.net.
hostmaster.space.net. 2016040601 28800 3600 864000 1800
$ dig +short @ns3.dns.space.net
space.net soa
ns.Space.Net.
hostmaster.Space.Net. 2016040601 28800 3600 864000 1800
first one is knot, second is BIND, and the "mixed case" spelling is
what the zone master (hidden primary) is distributing.
(I understand that DNS is not case-significant, but we're using upper
case in DNS labels because we like it that way...)
Looking at labels inside the zone (dig axfr) shows that knot is lowercasing
*everything*, not only the SOA records.
So, I started looking whether there is a switch that can change knot's
behaviour to just leave the labels alone, and do not lowercase everything.
Google did not find anything, neither did "man knotd" or "man
knot.conf".
So, is there a hidden switch or compile-time feature to achieve this?
thanks in advance,
Gert Doering
-- NetMaster
--
have you enabled IPv6 on something today...?
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