From owner-freebsd-questions@FreeBSD.ORG Fri Jul 13 07:08:26 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C31A316A403 for ; Fri, 13 Jul 2007 07:08:26 +0000 (UTC) (envelope-from j65nko@gmail.com) Received: from nz-out-0506.google.com (nz-out-0506.google.com [64.233.162.228]) by mx1.freebsd.org (Postfix) with ESMTP id 80F2313C4A8 for ; Fri, 13 Jul 2007 07:08:26 +0000 (UTC) (envelope-from j65nko@gmail.com) Received: by nz-out-0506.google.com with SMTP id l8so334272nzf for ; Fri, 13 Jul 2007 00:08:26 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=iOEf9nuKP5KRZ1XR4FygyTQnPOqnXps+QhsoFbvrpvxTYsNCnaI7gwv03cubJEGPyZNmVfNx4uVeO0v+H+uvzHGy4KHdagGr1H635epUULw5XcGmsauVz/R8ZL/wgKQjPvV61KZ+ySGQZg7A2+6hyHOTF8F0bSAECRhUBUVDbH8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=eXZ07Gz6OtgE5vkr3mfHTfcmiBhU5C3xCdndnoPv75rd1UWJbENrjKb4m7A+xC6kjvZt/HZGRJfqCec41ssIJXBYUv5/H1CQ7yV/EFhFaju4uYE/fzzbFOa4QhPQOgSaZ1gDuUIj7T4UWwEjqL89s2TANMDWxRE5oKti9dsoGJ8= Received: by 10.143.14.16 with SMTP id r16mr108183wfi.1184310505640; Fri, 13 Jul 2007 00:08:25 -0700 (PDT) Received: by 10.143.157.5 with HTTP; Fri, 13 Jul 2007 00:08:25 -0700 (PDT) Message-ID: <19861fba0707130008y3b8c1e5w426340a92ba14c37@mail.gmail.com> Date: Fri, 13 Jul 2007 09:08:25 +0200 From: J65nko To: cuongvt@fpt.vn, freebsd-questions@freebsd.org In-Reply-To: <200707130623.l6D6NZ3I076815@banyan.cs.ait.ac.th> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <46970917.3030502@fpt.vn> <200707130536.l6D5akxS070187@banyan.cs.ait.ac.th> <46971201.8030101@fpt.vn> <200707130552.l6D5qEM7071933@banyan.cs.ait.ac.th> <4697170E.3000909@fpt.vn> <200707130623.l6D6NZ3I076815@banyan.cs.ait.ac.th> Cc: Subject: Re: is is able to setting up DNS server reverse lookup with DynamicIP? 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: Fri, 13 Jul 2007 07:08:26 -0000 On 7/13/07, Olivier Nicole wrote: > I understand your problem. > > dyndns.com is taking care of the forward dynamic DNS for you. > > Now who is in charge of the reverse DNS for 58.187.106.120 (your > current IP)? I beleive it is FPT. > > So FPT should upgrade its own reverse DNS every time it gives an IP to > your server. > > Right now if I make a reverse DNS lookup on 58.187.106.120 it gets > nothing, while it should get thecuong.gotdns.com. > > The easiest way to solve your email problem would be that your server > sends all the email thought FPT mail server. > > As a rule, it is a bad idea to use a machine with a dynamic address to > be an SMTP server: when the IP changes, the DNS cache will take some > time to update everywhere, so for some time your email will be sent to > the wrong IP: mailiong list may decide that your account is dead and > remove you from the list. > > Olivier This same issue is being discussed at http://www.bsdforums.org/forums/showthread.php?p=265093#post265093 ;)