From owner-freebsd-net Fri May 15 11:44:55 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA15242 for freebsd-net-outgoing; Fri, 15 May 1998 11:44:55 -0700 (PDT) (envelope-from owner-freebsd-net@FreeBSD.ORG) Received: from mercury.Sun.COM (mercury.Sun.COM [192.9.25.1]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id LAA15211 for ; Fri, 15 May 1998 11:44:41 -0700 (PDT) (envelope-from Mailer-Daemon@East.Sun.COM) Received: from East.Sun.COM ([129.148.1.241]) by mercury.Sun.COM (SMI-8.6/mail.byaddr) with SMTP id LAA04797; Fri, 15 May 1998 11:44:13 -0700 Received: from suneast.East.Sun.COM by East.Sun.COM (SMI-8.6/SMI-5.3) id OAA16738; Fri, 15 May 1998 14:44:11 -0400 Received: from compound.east.sun.com by suneast.East.Sun.COM (SMI-8.6/SMI-SVR4) id OAA03034; Fri, 15 May 1998 14:44:08 -0400 Received: (from alk@localhost) by compound.east.sun.com (8.8.8/8.7.3) id NAA14225; Fri, 15 May 1998 13:54:26 -0500 (CDT) Date: Fri, 15 May 1998 13:54:26 -0500 (CDT) Message-Id: <199805151854.NAA14225@compound.east.sun.com> From: Tony Kimball MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Face: O9M"E%K;(f-Go/XDxL+pCxI5*gr[=FN@Y`cl1.Tn Reply-To: alk@pobox.com To: ari@suutari.iki.fi Cc: freebsd-net@FreeBSD.ORG Subject: Transparent proxying (was: IPFW + natd -redirect_port) References: <355C4626.5B8EAF27@suutari.iki.fi> X-Mailer: VM 6.34 under 20.3 "Vatican City" XEmacs Lucid Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I have a problem which I imagine to be fairly common, and this talk of transparent proxies suggests that the best solution is to be found by querying this list: I use various IP providers. Depending on the nonce provider, my smtp relay host varies, and my http/ftp proxy varies or becomes null. Currently I use a ppp linkup/linkdown pair to switch /etc/sendmail.cf, (but this means that I can't run sendmail as a daemon, which is a problem for other hosts on my lan, for which I route) and turn proxies on/off manually. Ideally, I think I should like to transparently proxy http/ftp for both the router and other LAN clients, or disable proxying entirely, depending on the route, and similarly to translate some dummy IP to the current relay host depending upon the route. What is the best current and the best near-future solution? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message