From owner-freebsd-questions Thu May 11 5:24:29 2000 Delivered-To: freebsd-questions@freebsd.org Received: from elcb.co.za (ns1.elcb.co.za [196.26.96.130]) by hub.freebsd.org (Postfix) with SMTP id D157B37B633 for ; Thu, 11 May 2000 05:24:16 -0700 (PDT) (envelope-from mvincent@elcb.co.za) Received: from marius.elcb.co.za ([196.11.122.217] helo=MVincent) by elcb.co.za with smtp (Exim 3.12 #1) id 12ps10-000Hb7-00 for freebsd-questions@freebsd.org; Thu, 11 May 2000 14:24:30 +0200 From: "Marius Vincent" To: "freeBSD-Questions" Subject: Block and reverse DNS. Date: Thu, 11 May 2000 14:22:50 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300 Importance: Normal Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi Could somebody please tell me how reverse lookups take place in theory. As far as I know it works like this: If you do a nslookup on 111.111.111.111 then your dns server contacts the root servers and requests a dns server ip for the class A address 111.0.0.0, then it askes the dns server of 111.0.0.0 to look for 111.222.0.0.0 in its records and the same for 111.111.111.0 and once again the same for the last step that the last DNS server will look in it's ptr records and return a address of 111.111.111.111 pointing towards foo.bar.com right???? or wrong?? Thanx Marius Vincent Technical ELCB Information Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message