From owner-freebsd-questions@FreeBSD.ORG Thu Nov 17 18:36:38 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4279B16A41F for ; Thu, 17 Nov 2005 18:36:38 +0000 (GMT) (envelope-from chad@shire.net) Received: from hobbiton.shire.net (hobbiton.shire.net [166.70.252.250]) by mx1.FreeBSD.org (Postfix) with ESMTP id F020A43D45 for ; Thu, 17 Nov 2005 18:36:37 +0000 (GMT) (envelope-from chad@shire.net) Received: from [67.161.222.227] (helo=[192.168.99.68]) by hobbiton.shire.net with esmtpa (Exim 4.51) id 1Ecocf-000KQI-8a; Thu, 17 Nov 2005 11:36:37 -0700 In-Reply-To: <20051117143643.GC2572@rabbit> References: <51190.68.165.89.71.1132194943.squirrel@mail.el.net> <20051117025112.3707143D45@mx1.FreeBSD.org> <20051117043859.GF26954@localdomain> <20051117143643.GC2572@rabbit> Mime-Version: 1.0 (Apple Message framework v746.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: "Chad Leigh -- Shire.Net LLC" Date: Thu, 17 Nov 2005 11:36:36 -0700 To: Mark Bucciarelli X-Mailer: Apple Mail (2.746.2) X-SA-Exim-Connect-IP: 67.161.222.227 X-SA-Exim-Mail-From: chad@shire.net X-SA-Exim-Scanned: No (on hobbiton.shire.net); SAEximRunCond expanded to false Cc: Free BSD Questions list Subject: Re: nullfs [was: Need urgent help regarding security] 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: Thu, 17 Nov 2005 18:36:38 -0000 On Nov 17, 2005, at 7:36 AM, Mark Bucciarelli wrote: > On Wed, Nov 16, 2005 at 10:16:16PM -0700, Chad Leigh -- Shire.Net LLC > wrote: > >> I then create one or more jails that use nullfs to READ ONLY mount >> specific parts of the master hierarchy into the jail. > > This is very interesting to me, as I are currently working on a jail > design and nullfs has a number of question marks next to it, mainly > due > to the scary man page warning. Here are a few of the questions: > > How did you decide it was trustworthy? I did a few tests and read some archived posts from others using it. I was previously using a localhost nfs mount but wanted to eliminate nfs from the mix due to another issue I was having. > > Does it result in lower RAM usage? (The program that is run, for > example, Apache, comes from the same spot on the disk across all > jails.) Don't know. Never did any tests. > > Is it currently maintained? The man page includes a maintainer > solicitation. Don't know. However, archived posts lead me to believe that bugs have been fixed etc recently and the man page may be out of date. > > Have you had any problems in production? Not that I know of. Seems to be running fine with over 40 jails on the machine. Most are READ ONLY but I do have one jail with a RW / usr so it can install ports etc. I have a /usr/public I install ports into for all jails to use. > > Have you used it for long? > A few months. Previously I was happily doing the same thing with the localhost nfs mount. best Chad > m > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org" --- Chad Leigh -- Shire.Net LLC Your Web App and Email hosting provider chad@shire.net