From owner-freebsd-isp Thu Mar 12 12:32:19 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA21165 for freebsd-isp-outgoing; Thu, 12 Mar 1998 12:32:19 -0800 (PST) (envelope-from owner-freebsd-isp@FreeBSD.ORG) Received: from ntserver.computronic.hu (ntserver.computronic.hu [194.149.43.67]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA21151 for ; Thu, 12 Mar 1998 12:32:09 -0800 (PST) (envelope-from andras.tudos@computronic.hu) Received: from karinthy (karinthy.computronic.hu [194.38.100.254]) by ntserver.computronic.hu (Post.Office MTA v3.1.2 release (PO205-101c) ID# 0-44403U100L100S0) with SMTP id AAA368 for ; Thu, 12 Mar 1998 21:31:56 +0100 Message-Id: <3.0.2.32.19980312213104.01060870@computronic.hu> X-Sender: andras.tudos@computronic.hu X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.2 (32) Date: Thu, 12 Mar 1998 21:31:04 +0100 To: freebsd-isp@FreeBSD.ORG From: "Andras Tudos - Computronic, C3" Subject: Scalable mail server Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello, we have to scale our qmail based mail server (with a custom made www frontend) to multiple machines to be able to serve ~100000 users and more. Currently we have a single server based heavily overloaded system with 30000+ users. We have many plans, but I would prefer to hear how others would start to construct such a system. We build all the machines ourselfs (including PII based PCs, RAID, network) and write the necessary code. All ideas, especially real world experiences are warmly welcome... (Especially file-system, user database and redundancy issues are critical. Would you use SMP with dual PIIs or 2.2.5? NFS issues? Postgres instead of passwd? Round-robin DNS or something else?) Andras Tudos & Istvan Pecsenyanszky C3, Budapest To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message