From owner-freebsd-questions Sat Feb 1 12:50: 5 2003 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 A508037B401 for ; Sat, 1 Feb 2003 12:50:02 -0800 (PST) Received: from sysfail.com (24-56-213-122.mdmmi.voyager.net [24.56.213.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id 81C5943F75 for ; Sat, 1 Feb 2003 12:50:01 -0800 (PST) (envelope-from aSe@SysFail.com) Received: from bob ([127.0.0.1]) by sysfail.com ([24.56.213.122]) with SMTP (MDaemon.PRO.v6.5.1.R) for ; Sat, 01 Feb 2003 15:50:10 -0500 Reply-To: From: "aSe" To: "FreeBSD-Questions" Cc: "Bill Moran" Subject: RE: DNS question Date: Sat, 1 Feb 2003 15:50:08 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: <3E3C2EB0.6050801@potentialtech.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-MDRemoteIP: 127.0.0.1 X-Return-Path: aSe@SysFail.com X-MDaemon-Deliver-To: freebsd-questions@freebsd.org Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >[please wrap you lines at 72 characters or so] > >aSe wrote: > >> When a person does a dns lookup to the server and its not already = cached, >> how does It find out the correct name server to use to find the ip? > >FreeBSD comes with a list of "root" DNS servers. These are master = servers >maintained by many different sources that have information on the top = level >domains. > From this list, the DNS can figure out which root server to contact = for .com >or .net or .whatever. That server then directs your server to the = specific >DNS server that has the information you are asking for. > >This is oversimplified. If you have forwarders configured, then the = forwarders >check their cache first, before consulting the root servers. >But the basic method is described there. Ahh okay, I understand that. Someone once told me the information is=20 already downloaded in a list, so the server doesn't have to contact=20 root all the time to get ns information. Is this not true anymore? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message