From owner-freebsd-security Wed Apr 7 8:44:21 1999 Delivered-To: freebsd-security@freebsd.org Received: from socrates.i-pi.com (socrates.i-pi.com [198.49.217.5]) by hub.freebsd.org (Postfix) with ESMTP id 5EA5C14EFE for ; Wed, 7 Apr 1999 08:44:16 -0700 (PDT) (envelope-from ingham@socrates.i-pi.com) Received: (from ingham@localhost) by socrates.i-pi.com (8.9.1/8.9.1) id IAA01609; Wed, 7 Apr 1999 08:40:54 -0600 Message-ID: <19990407084054.D1562@socrates.i-pi.com> Date: Wed, 7 Apr 1999 08:40:54 -0600 From: Kenneth Ingham To: GuangChun Wen , freebsd-security@FreeBSD.ORG Subject: Re: Cluster service in FreeBSD References: <00b201be809b$ced53cc0$b366b4cb@wen.iisi.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2 In-Reply-To: <00b201be809b$ced53cc0$b366b4cb@wen.iisi.co.jp>; from GuangChun Wen on Wed, Apr 07, 1999 at 11:10:28AM +0900 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org For load balancing, you can take a look at: http://www.stanford.edu/~riepel/lbnamed/ I have built several firewalls with FreeBSD and planning for failure is more an issue of planning for hardware failure, as these machines just do not crash. I do set up mirroring with ccd (details on what I learned about ccd are at http://www.i-pi.com/~ingham/ccd.html) to deal with the possibility of a disk failure. I have heard that there is a new mirroring facility in 3.x, but my firewall machines are all running 2.2.x. The biggest problem I have had is on a mail server with procmail as a local delivery agent. Procmail wants to have the whole message in memory at once, and people at one of my sites have no concept of file size or transmission time (over 56KB lines), so emailing 50MB documents is a somewhat common event. With a 16MB P120, swap space is a requirement. I added an old 400MB disk as swap space and solved the problem. Kenneth To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message