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Message-ID: <874li7b6ju.fsf@mid.deneb.enyo.de>
Date: Wed, 13 Jun 2018 07:26:45 +0200
From: Florian Weimer <fw@...eb.enyo.de>
To: Markus Wichmann <nullplan@....net>
Cc: musl@...ts.openwall.com
Subject: Re: musl dns search domain stop when current search got some error
* Markus Wichmann:
> Let me stop you there. I think we already had this discussion once, but
> here goes: code 0 means "Name exists". No answers mean "No record of
> this type exists". Therefore, if one of your local resolvers does that,
> it means to tell you that the name exists, just no records of type A or
> AAAA or CNAME. If the name actually does not exist, then this is a bug
> in the DNS server and should be fixed there.
NODATA (RCODE 0 without any data) for non-existing names is part of
the DNS protocol as it is deployed, for various reasons (empty
non-terminals, enumeration protection, online signing).
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