From owner-freebsd-hackers@FreeBSD.ORG Sun Mar 13 11:00:47 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3A79916A4CE for ; Sun, 13 Mar 2005 11:00:47 +0000 (GMT) Received: from deliver.smtp.vlink.ru (alias.rigel.internal.vlink.ru [217.23.88.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9FD2543D62 for ; Sun, 13 Mar 2005 11:00:45 +0000 (GMT) (envelope-from dsh@vlink.ru) Received: from smtp.smtp.vlink.ru (clamav.smtp.vlink.ru [192.168.4.1]) by deliver.smtp.vlink.ru (Postfix) with ESMTP id 53D854574E; Sun, 13 Mar 2005 14:00:43 +0300 (MSK) Received: from neva.vlink.ru (neva.vlink.ru [217.107.252.29]) by smtp.smtp.vlink.ru (Postfix) with ESMTP id 2C75745133; Sun, 13 Mar 2005 14:00:43 +0300 (MSK) Received: from neva.vlink.ru (localhost [127.0.0.1]) by neva.vlink.ru (8.13.3/8.13.3) with ESMTP id j2DB0g2p034879; Sun, 13 Mar 2005 14:00:42 +0300 (MSK) (envelope-from dsh@vlink.ru) Received: (from dsh@localhost) by neva.vlink.ru (8.13.3/8.13.3/Submit) id j2DB0goR034876; Sun, 13 Mar 2005 14:00:42 +0300 (MSK) (envelope-from dsh@vlink.ru) X-Comment-To: Frank Knobbe To: Frank Knobbe References: <1107178792.613.22.camel@spirit> <20050131161006.GD60177@obiwan.tataz.chchile.org> <51723.81.84.175.77.1107199764.squirrel@81.84.175.77> <1110689557.890.73.camel@localhost> From: Denis Shaposhnikov Date: Sun, 13 Mar 2005 14:00:42 +0300 In-Reply-To: <1110689557.890.73.camel@localhost> (Frank Knobbe's message of "Sat, 12 Mar 2005 22:52:37 -0600") Message-ID: <87d5u33j51.fsf@neva.vlink.ru> User-Agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Jumbo Shrimp, berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Virus-Scanned: ClamAV using ClamSMTP cc: freebsd-hackers@freebsd.org cc: security@revolutionsp.com Subject: Re: Idea about 'skeleton jail X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 Mar 2005 11:00:47 -0000 >>>>> "Frank" == Frank Knobbe writes: Frank> If you nullfs these directories, you loose the ability to Frank> prune the jail. Pruning is part of system hardening. I'd May be it's better to use unionfs, so anybody can replace binaries with their stub version pre jail. -- DSS5-RIPE DSS-RIPN 2:550/5068@fidonet 2:550/5069@fidonet mailto:dsh@vlink.ru http://neva.vlink.ru/~dsh/