From owner-freebsd-questions@FreeBSD.ORG Sat Oct 28 15:26:07 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 10A9C16A412 for ; Sat, 28 Oct 2006 15:26:07 +0000 (UTC) (envelope-from iaccounts@ibctech.ca) Received: from pearl.ibctech.ca (pearl.ibctech.ca [209.167.58.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2ABA043D6D for ; Sat, 28 Oct 2006 15:26:02 +0000 (GMT) (envelope-from iaccounts@ibctech.ca) Received: (qmail 16436 invoked by uid 1002); 28 Oct 2006 15:26:02 -0000 Received: from iaccounts@ibctech.ca by pearl.ibctech.ca by uid 89 with qmail-scanner-1.22 (spamassassin: 2.64. Clear:RC:1(208.113.63.132):. Processed in 5.513475 secs); 28 Oct 2006 15:26:02 -0000 Received: from unknown (HELO xzibit) (steve@ibctech.ca@208.113.63.132) by pearl.ibctech.ca with (RC4-MD5 encrypted) SMTP; 28 Oct 2006 15:25:56 -0000 From: "Steve Bertrand" To: "'David Banning'" Date: Sat, 28 Oct 2006 11:26:18 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 Thread-Index: Acb6PMSZPIOMLGFZT9+hL4yC4D0AZQAZ9HKg In-Reply-To: <20061028025626.GA39172@skytracker.ca> X-Qmail-Scanner-Message-ID: <116204915767516423@pearl.ibctech.ca> Message-Id: <20061028152602.2ABA043D6D@mx1.FreeBSD.org> Cc: freebsd-questions@freebsd.org Subject: RE: how to know what DNS server is being used X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Oct 2006 15:26:07 -0000 > On my registrars site I have two DNS servers listing. How > would I know that 1) both are working. 2) which one is being used. 1) http://dnsreport.com 2) # tcpdump -n -i | grep .53 | grep domain.com (where domain.com == the domain I want to find out if the server is answering for) Generally, you can do this on all of your name servers, and get a good idea of which ones are handling DNS resolution at any particular time. Steve