Date: Thu, 9 Jan 2003 14:22:02 +0100 From: Roman Neuhauser <neuhauser@bellavista.cz> To: Peter Much <pmc@citylink.dinoex.sub.org> Cc: hackers@FreeBSD.ORG Subject: Re: sendmail: how to get the named of FreeBSD4.7 standards compliant? Message-ID: <20030109132202.GG1196@freepuppy.bellavista.cz> In-Reply-To: <20030106173652.A495@disp.oper.dinoex.org> References: <20030101181330.C8233@disp.oper.dinoex.org> <3E134659.78028611@mindspring.com> <20030106173652.A495@disp.oper.dinoex.org>
next in thread | previous in thread | raw e-mail | index | archive | help
# pmc@citylink.dinoex.sub.org / 2003-01-06 17:36:52 +0100:
> ! > Background: This environment should be configured to use
> ! > an internet connection for internet-relevant things, but to
> ! > work flawlessly without such a connection as long as matters
> ! > do concern only systems within the LAN.
> !
> ! This is called a "split horizon DNS", and you need to run two
> ! DNS servers, one interior, and one exterior, both authoritative
> ! for your domain, in order for this to work. The problem is that
> ! you are forwarding a request that should be local, and you are
> ! doing it because your local server does not pass the authority
> ! test for your local domain.
>
> Well, I think I got it now. What I did not know was that any
> nameserver installation is expected to always have some kind
> of root nameserver accessible (either the real ones from the
> internet, or elseways a local shortcut) in order to function
> properly.
This is wrong in at least two ways.
An authoritative content server doesn't need to know root servers,
because they're out of it's business.
A non-recursive (forwarding-only) resolver doesn't need to know
root servers, just the upstream resolver it forwards all requests
to.
--
If you cc me or remove the list(s) completely I'll most likely ignore
your message. see http://www.eyrie.org./~eagle/faqs/questions.html
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030109132202.GG1196>