From owner-freebsd-questions@FreeBSD.ORG Sun Nov 19 05:33:01 2006 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2FC8D16A415 for ; Sun, 19 Nov 2006 05:33:01 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1C34343D5F for ; Sun, 19 Nov 2006 05:32:53 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id E119E5FF6; Sun, 19 Nov 2006 00:32:59 -0500 (EST) X-Virus-Scanned: amavisd-new at codefab.com Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aMCCZAhZ56u6; Sun, 19 Nov 2006 00:32:57 -0500 (EST) Received: from [192.168.1.251] (pool-68-161-95-165.ny325.east.verizon.net [68.161.95.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id CEA1A5CB9; Sun, 19 Nov 2006 00:32:56 -0500 (EST) Message-ID: <455FEC87.6030007@mac.com> Date: Sun, 19 Nov 2006 00:32:55 -0500 From: Chuck Swiger User-Agent: Thunderbird 1.5.0.8 (Windows/20061025) MIME-Version: 1.0 To: Darrel References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: questions@freebsd.org Subject: Re: system updates, as affected by securelevel 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: Sun, 19 Nov 2006 05:33:01 -0000 Darrel wrote: > With OpenBSD securelevel=2 I can install a kernel, make build, and > install programs which are compiled using Systrace. > > What is the highest securelevel that I can configure on RELENG_6_2 > which will not affect compiling and installing; e.g., perhaps not > much local difference but having to reboot for a firewall change? > This installation is new and the AUDIT option will be in the kernel. securelevel = 0. Because the kernel is installed using the schg flag: if you have securelevel set to 1 or higher, you will not be able to over-write the kernel without rebooting into single-user mode. See "man init" for details. [ Of course, reinstalling the kernel and/or world is something which you are encouraged to do under single-user mode... ] -- -Chuck