From owner-freebsd-questions Sat Dec 28 9:28:14 2002 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 8225B37B401 for ; Sat, 28 Dec 2002 09:28:12 -0800 (PST) Received: from mgw1-out.MEIway.com (mgw1.meiway.com [212.73.210.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 301E643ED8 for ; Sat, 28 Dec 2002 09:28:11 -0800 (PST) (envelope-from LConrad@Go2France.com) Received: from VirusGate.MEIway.com (virus-gate.meiway.com [212.73.210.91]) by mgw1-out.MEIway.com (Postfix Relay Hub) with ESMTP id 72125EF6AA for ; Sat, 28 Dec 2002 18:25:05 +0100 (CET) Received: from localhost (localhost.meiway.com [127.0.0.1]) by VirusGate.MEIway.com (Postfix) with SMTP id EADC35D009 for ; Sat, 28 Dec 2002 18:29:24 +0100 (CET) Received: from mail.Go2France.com (ms1.meiway.com [212.73.210.73]) by VirusGate.MEIway.com (Postfix) with ESMTP id 9D3F55D008 for ; Sat, 28 Dec 2002 18:29:24 +0100 (CET) Received: from tx0-go2france-c.Go2France.com [66.64.14.18] by mail.Go2France.com with ESMTP (SMTPD32-6.06) id A23C2C602A0; Sat, 28 Dec 2002 18:41:16 +0100 Message-Id: <5.1.1.6.2.20021228111607.0243f108@mail.go2france.com> X-Sender: LConrad@Go2France.com@mail.go2france.com X-Mailer: QUALCOMM Windows Eudora Version 5.1.1 Date: Sat, 28 Dec 2002 11:27:53 -0600 To: freebsd-questions@freebsd.org From: Len Conrad Subject: Re: What are the SMTP rules for sending mail to FreeBSD In-Reply-To: <3E0DD0BD.5010207@quadtelecom.com> References: <3E0DBCFC.5040907@quadtelecom.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed 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 >Easier said than done. I've been assigned 66.45.116.136/29 by the ISP. .136 is not a power of 2 which is required for classless reverse delegation. It should be .132/29 or .140/29 >I control DNS for quadtelecom.com, but I don't control the reverse >lookup. I'd like to know the exact algorithm in use, so that I can >negotiate with my ISP. For sub-Class C delegation, see the DNS & BIND book, 4th edition. 1. Your ISP creates a arbitrarily named node in the reverse domain and delegates the zone to you: tabak.116.45.66.in-addr.arpa. NS ns1.quadtelecom.com. tabak.116.45.66.in-addr.arpa. NS ns2.quadtelecom.com. 2. then for each ip in your tabak subzone he create a CNAME in his NS: 133.116.45.66.in-addr.arpa. CNAME 133.tabak.116.45.66.in-addr.arpa. . . . 139.116.45.66.in-addr.arpa. CNAME 139.tabak.116.45.66.in-addr.arpa. 3. then in your NS: 133.tabak.116.45.66.in-addr.arpa. PTR name.what.ever. . . . 139.tabak.116.45.66.in-addr.arpa. PTR hostname.some.dom. The rule is that the parent domain's CNAME rdata field must, of course, be matched the child domain's PTR owner field. >For example, how are are hosts with multiple IP adresses handled? put only one PTR per ip. Len To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message