From owner-freebsd-net@FreeBSD.ORG Wed Jun 22 23:18:36 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E3EC816A41C for ; Wed, 22 Jun 2005 23:18:36 +0000 (GMT) (envelope-from gabor.kovesdan@t-hosting.hu) Received: from viefep20-int.chello.at (viefep12-int.chello.at [213.46.255.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0500E43D4C for ; Wed, 22 Jun 2005 23:18:35 +0000 (GMT) (envelope-from gabor.kovesdan@t-hosting.hu) Received: from [80.98.156.20] by viefep20-int.chello.at (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050622231833.POWS29474.viefep20-int.chello.at@[80.98.156.20]>; Thu, 23 Jun 2005 01:18:33 +0200 Message-ID: <42B9F1C8.7070702@t-hosting.hu> Date: Thu, 23 Jun 2005 01:18:32 +0200 From: =?ISO-8859-1?Q?K=F6vesd=E1n_G=E1bor?= User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marco Molteni References: <20050622151406.GG791@empiric.icir.org> <20050622180841.56be8f27.molter@tin.it> In-Reply-To: <20050622180841.56be8f27.molter@tin.it> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Cc: freebsd-net@freebsd.org, xtremejames183@msn.com Subject: Re: www user than root X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jun 2005 23:18:37 -0000 > > >I think that the following sysctls do the trick > >molter@gattaccio[~]$ sysctl net|grep reserv >net.inet.ip.portrange.reservedhigh: 1023 >net.inet.ip.portrange.reservedlow: 0 > >marco > > According to that, one could lower the reservedhigh value to 79, or increase the reservedlow to 81, but I don't think it would be secure enough. The hack that Bruce mentioned would be secure, but not too impressive. I've seen the RBAC (Role-based access control) in Solaris 10 and it did it nicely. It would be nice to have such feature in FreeBSD. Or even in TrustedBSD as an experimental project, and it might be merged later if it seems to be stable. Cheers, Gábor Kövesdán