From owner-freebsd-current@FreeBSD.ORG Tue May 18 07:23:56 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B91B916A4CE; Tue, 18 May 2004 07:23:56 -0700 (PDT) Received: from ran.psg.com (ip166.usw253.dsl-acs2.sea.iinet.com [209.20.253.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id 010F643D46; Tue, 18 May 2004 07:23:56 -0700 (PDT) (envelope-from randy@psg.com) Received: from localhost ([127.0.0.1] helo=ran.psg.com.psg.com) by ran.psg.com with esmtp (Exim 4.32; FreeBSD) id 1BQ5VZ-000FGF-2o; Tue, 18 May 2004 07:23:53 -0700 From: Randy Bush MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16554.7288.281205.464222@ran.psg.com> Date: Tue, 18 May 2004 07:23:52 -0700 To: Don Lewis References: <20040518063753.GB2038@over-yonder.net> <200405180804.i4I8477E019740@gw.catspoiler.org> cc: 4711@chello.at cc: freebsd-current@FreeBSD.org cc: cyrille.lefevre@laposte.net cc: fullermd@over-yonder.net Subject: Re: bind timeouts X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 May 2004 14:23:56 -0000 >> RFC974 says: >> There is one other special case. If the response contains an >> answer which is a CNAME RR, it indicates that REMOTE is actually >> an alias for some other domain name. The query should be repeated >> with the canonical domain name. > > That covers the intial lookup, meaning that a CNAME pointing to an MX is > legal. no. it means an MX referring to a CNAME which resolves to an A randy