From owner-freebsd-isp  Fri Aug 21 16:26:16 1998
Return-Path: <owner-freebsd-isp@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id QAA13593
          for freebsd-isp-outgoing; Fri, 21 Aug 1998 16:26:16 -0700 (PDT)
          (envelope-from owner-freebsd-isp@FreeBSD.ORG)
Received: (from jmb@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id QAA13587;
          Fri, 21 Aug 1998 16:26:13 -0700 (PDT)
          (envelope-from jmb)
From: "Jonathan M. Bresler" <jmb>
Message-Id: <199808212326.QAA13587@hub.freebsd.org>
Subject: [Q] what happens when 1 of N nameservers dies?
To: isp
Date: Fri, 21 Aug 1998 16:26:13 -0700 (PDT)
X-Mailer: ELM [version 2.4ME+ PL32 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-isp@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org

	what happens when a domain with N nameservers loses one?

	let abc.org have 3 domain nameservers ns1.abc.org, ns2.abc.org,
	and ns3.abc.org.  all are pointed to by the Internic.
	one dies.  a person/program at another domain does a lookup
	on a host in abc.org.   

	what happens?  

	do 1/3 of the lookups return "host unknown"?
	does the resolver try one nameserver and if it does not
	receive a response try another?

jmb

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-isp" in the body of the message