From owner-freebsd-questions Wed Feb 25 05:27:52 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id FAA09049 for freebsd-questions-outgoing; Wed, 25 Feb 1998 05:27:52 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from ammi.mclink.it (ammi.mclink.it [195.110.128.1]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id FAA09038 for ; Wed, 25 Feb 1998 05:27:24 -0800 (PST) (envelope-from masotti@mclink.it) Received: from gatekeeper (net133-188.mclink.it [195.110.133.188]) by ammi.mclink.it (8.8.5/8.6.12) with SMTP id OAA04327; Wed, 25 Feb 1998 14:27:05 +0100 (MET) Message-ID: <34F42AF9.167EB0E7@mclink.it> Date: Wed, 25 Feb 1998 14:30:17 +0000 From: Marco Masotti X-Mailer: Mozilla 3.04Gold (X11; I; FreeBSD 2.2.5-RELEASE i386) MIME-Version: 1.0 To: questions@FreeBSD.ORG CC: masotti@mclink.it Subject: Web fault folerance through DNS Round Robin and Ip alias Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I would like to provide a web service with a a sort of "fault tolerance", using DNS round robin and IP alias technique. The scheme is fairly conventional: the DNS round robin would spread the web requests between two machines, mapping to the respective IP alias addresses. In the same time the two machines, using simple shell scripts, monitor each others pinging to the primary ip addresses. As soon as one of the two machines doesn't reply to the ping, it's assumed to be faulty by the other still alive, that immediately temporarily install the Ip alias corresponding to the faulty machine. As soon as the first machine comes back from outage, the second one de-install the temporary Ip alias. My question is: --------------- Is anywhere available a ready set of scripts that can do the simple job I want? Thanks for any help - Marco M. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message