From owner-freebsd-isp Sun Jul 4 0:37:40 1999 Delivered-To: freebsd-isp@freebsd.org Received: from arnold.neland.dk (mail.neland.dk [194.255.12.232]) by hub.freebsd.org (Postfix) with ESMTP id 8610C14BED for ; Sun, 4 Jul 1999 00:37:36 -0700 (PDT) (envelope-from leifn@neland.dk) Received: from localhost (localhost [127.0.0.1]) by arnold.neland.dk (8.9.3/8.9.3) with ESMTP id JAA72689; Sun, 4 Jul 1999 09:37:24 +0200 (CEST) (envelope-from leifn@neland.dk) Date: Sun, 4 Jul 1999 09:37:24 +0200 (CEST) From: Leif Neland To: bb@taex001.tamu.edu Cc: freebsd-isp@FreeBSD.ORG Subject: Re: {bb} BB, sendmail and rbl In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sat, 3 Jul 1999, root wrote: > > > On Sun, 4 Jul 1999, Leif Neland wrote: > > > I run Big Brother on a FreeBSD box, which is connected to the world on a > > dial-on-demand isdn. > > A few days ago, I enabled FEATURE(rbl)dnl, Realtime Blackhole list in my > > sendmail.mc > > > > Now everytime bb connects to sendmail, > > the dial-on-demand kicks in! > > > RBL is expensive in DNS transactions. Every mail address gets matched > against a illegal Reverse zone scheme. If you can stand it, you could > set up your named to be a downstream zone for the RBL master. It helps > (A Lot)!!! > > Steve Foster > BBS-la.com > > sysop@bbs-la.com I added logging to my named, and discovered that sendmail did a rbl-lookup on 127.0.0.1 (or the host connecting to it) at the initial connect. i.e. before any HELO or other chat. So I made my named authoritative for 0.0.127.maps.rbl.vix.com and 0.168.192.maps.rbl.vix.com. This stopped the dial-on-demand's on every bb-test Leif To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message