From owner-freebsd-questions@FreeBSD.ORG Thu Jun 26 23:34:51 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DFC537B401 for ; Thu, 26 Jun 2003 23:34:51 -0700 (PDT) Received: from mail.munk.nu (213-152-51-194.dsl.eclipse.net.uk [213.152.51.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9B6EB43FE1 for ; Thu, 26 Jun 2003 23:34:50 -0700 (PDT) (envelope-from munk@mail.munk.nu) Received: from munk by mail.munk.nu with local (Exim 4.20) id 19Vmor-0003Kf-FE for freebsd-questions@freebsd.org; Fri, 27 Jun 2003 07:34:49 +0100 Date: Fri, 27 Jun 2003 07:34:49 +0100 From: Jez Hancock To: freebsd-questions Message-ID: <20030627063449.GA9527@users.munk.nu> Mail-Followup-To: freebsd-questions References: <00c101c3353c$4ecbe100$0100a8c0@ibacsoft.dynu.com> <20030626080930.GA24416@kyblik.pieskovisko.sk> <3EFAAE2C.1000509@attbi.com> <00e801c33c07$3e920360$0100a8c0@ibacsoft.dynu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00e801c33c07$3e920360$0100a8c0@ibacsoft.dynu.com> User-Agent: Mutt/1.4.1i Sender: User Munk Subject: Re: Two DNS servers with one IP address X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jun 2003 06:34:51 -0000 On Thu, Jun 26, 2003 at 12:20:30PM -0500, Alfonso Romero wrote: > Thanks for your reply. The reason I wanted to have two DNS servers is > because I want to register several domains and don?t want to depend on an > external DNS service, but I found out the two DNS servers required by > Internic must be physically separated also, so I?ll have to ask someone else > to host my secondary DNS server, or stick with the available DNS options. I > just wondered if it could be possible to have two DNS servers inside a LAN, > behind a FreeBSD box with NAT. This item on devshed is relevant to this thread: http://forums.devshed.com/showthread.php?s=&threadid=50100 Can anyone confirm that it's no longer a requisite to provide 2 distinct DNS servers for a domain you register? I say no longer because as I understand it there was a time when 2 distinct nameservers were required... Also, in the case an admin has only one auth nameserver for a domain but a registrar _requires_ you list two, what is the best strategy for listing the second nameserver? Is there any way to avoid using a third party DNS provider as your secondary nameserver (providing some sort of dummy listing)? As mentioned above in thread there are no doubt many cases where all services are hosted on one single IP address and so if the server goes down, losing DNS is the least of your worries. In this case wouldn't having a second nameserver listed actually be a bad thing (since queries to that second NS waste some (ok, minimal, but still some) bandwidth)? Cheers, Jez