From owner-freebsd-isp Fri Jul 27 5:37:16 2001 Delivered-To: freebsd-isp@freebsd.org Received: from taunus-biker.de (taunus-biker.de [212.255.4.205]) by hub.freebsd.org (Postfix) with ESMTP id 43B7537B403 for ; Fri, 27 Jul 2001 05:37:11 -0700 (PDT) (envelope-from r0m@taunus-biker.de) Received: from omnilinkw63 ([212.169.184.9]) by taunus-biker.de (8.9.3+3.2W/8.9.3) with SMTP id OAA00243; Fri, 27 Jul 2001 14:37:08 +0200 (CEST) Message-ID: <01f601c11698$467cf940$6560310a@intern.nextra.de> From: "Oliver Blasnik" To: "Andrew Reid" , "Sascha Lucky Luck" Cc: References: <20010726065304.39908.qmail@web20106.mail.yahoo.com> <3B5FDE77.DC5FC3DB@i-clue.de> <996207686.1405.14.camel@percible.alfred.cx> <996236914.3b615e72f3c96@mail.online.ie> Subject: Re: FreeBSD Mail Toaster CLUSTER Date: Fri, 27 Jul 2001 14:33:01 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6700 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6700 Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hi there, [Load-Balancing a Mailcluster, how to deliver Mail?!] > The file system where the user accounts live must then be shared > between the different mail servers. We mounted that from a Network > Appliance Filer cluster, so that was pretty safe to begin with. If you use an NAS for such things, check out that the IMAP and delivery-Software is able to work with it... Afaik there was the talk of Cyrus, which storage is not NFS-aware. Maildir seems to be the only solution, so Courier should be the choice. > User account information needs to either reside on the shared FS or > must be duplicated (eg. rdist) between the machines. We are using a replicated MySQL DB on every mailserver in the cluster, which is more in-time as rdist (imho). > If you are connected to the server that failed you'll have to > reconnect. Otherwise the user will never notice a server failure. If there's a professional solution at the Loadbalancer-Level, you will never connect to a failed server. > > - andrew > HTH, > s. Just the same ;) Oliver -- -- http://www.nextra.de - INTERNET@WORK ----- oliver.blasnik@nextra.de -- Nextra Deutschland | Oliver Blasnik Senior System Administrator GmbH & Co KG | Lyoner Strasse 26 D-60528 Frankfurt Engineering TA&S | tel +49-69-66441-0 fax +49-69-66441-199 ------------------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message