From owner-freebsd-isp@FreeBSD.ORG Thu Apr 28 07:25:19 2005 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 13E2D16A4CE for ; Thu, 28 Apr 2005 07:25:19 +0000 (GMT) Received: from obh.snafu.de (obh.snafu.de [213.73.92.34]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8017643D49 for ; Thu, 28 Apr 2005 07:25:18 +0000 (GMT) (envelope-from ob@gruft.de) Received: from ob by obh.snafu.de with local (Exim 4.50 (FreeBSD)) id 1DR3Of-0006Ay-GE for freebsd-isp@freebsd.org; Thu, 28 Apr 2005 09:25:17 +0200 Date: Thu, 28 Apr 2005 09:25:17 +0200 From: Oliver Brandmueller To: freebsd-isp@freebsd.org Message-ID: <20050428072517.GO95908@e-Gitt.NET> References: <005201c54b92$0cf63e60$0701a8c0@CIRIUM> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <005201c54b92$0cf63e60$0701a8c0@CIRIUM> User-Agent: Mutt/1.5.9i Sender: Oliver Brandmueller Subject: Re: load balancing - email server X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Apr 2005 07:25:19 -0000 Hello. On Thu, Apr 28, 2005 at 02:31:38PM +1300, Sam Kava wrote: > I am planning to setup a load balancing server to allow 3 pop servers to > share access to my mail server. Read the postings but nobody really > touch this subject. Appreciate any help, hopefully someone has done this > using freebsd. The mail storage format should be Maildir - which is NFS safe. Access to Maildir mailboxes by pop can be accomplished by courier-imap (it has a POP component) or the dovecot imap/pop server. I have both running in a single setup (for access to different mailboxes). The dir with the mailboxes can then simply be mounted from an NFS server. You should think about a shared authentication mechanism; we use LDAP for that. It's quite simple. We even use more than one SMTP Server to handle incoming mails in this setup. Lodabalncing is done by an Alteon 180e in front of the machines (currently 3, soon to be 5). - Oliver -- | Oliver Brandmueller | Offenbacher Str. 1 | Germany D-14197 Berlin | | Fon +49-172-3130856 | Fax +49-172-3145027 | WWW: http://the.addict.de/ | | Ich bin das Internet. Sowahr ich Gott helfe. | | Eine gewerbliche Nutzung aller enthaltenen Adressen ist nicht gestattet! |