From owner-freebsd-questions@FreeBSD.ORG Wed Apr 16 14:20:25 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E0934106564A for ; Wed, 16 Apr 2008 14:20:25 +0000 (UTC) (envelope-from jalmberg@identry.com) Received: from mx1.identry.com (on.identry.com [66.111.0.194]) by mx1.freebsd.org (Postfix) with ESMTP id 7E6358FC20 for ; Wed, 16 Apr 2008 14:20:25 +0000 (UTC) (envelope-from jalmberg@identry.com) Received: (qmail 84733 invoked by uid 89); 16 Apr 2008 14:20:24 -0000 Received: from unknown (HELO ?192.168.1.110?) (jalmberg@75.127.142.66) by mx1.identry.com with ESMTPA; 16 Apr 2008 14:20:23 -0000 Mime-Version: 1.0 (Apple Message framework v752.3) Content-Transfer-Encoding: 7bit Message-Id: <826F8FC0-C3E6-44D7-BE17-F85481FBDBB3@identry.com> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed To: freebsd-questions@freebsd.org From: John Almberg Date: Wed, 16 Apr 2008 10:20:21 -0400 X-Mailer: Apple Mail (2.752.3) Subject: Estimating bandwidth requirements for web/mail server X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Apr 2008 14:20:26 -0000 I have a FreeBSD web/mail server in a colocation facility. They offer many fixed and burstable bandwidth options. I am currently using 512Kbits fixed, which limits data transfer to around 64K up and down, simultaneously. This works okay at the moment, but I'm wondering how this will hold up as I add websites to the server. Other than empirically measuring load on the box, is there a way to predict or measure how much bandwidth I need? Any rules of thumb? Thanks: John