From owner-freebsd-security Fri Dec 20 08:17:24 1996 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id IAA25309 for security-outgoing; Fri, 20 Dec 1996 08:17:24 -0800 (PST) Received: from gw-nl1.philips.com (gw-nl1.philips.com [192.68.44.33]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id IAA25297 for ; Fri, 20 Dec 1996 08:17:20 -0800 (PST) Received: (from nobody@localhost) by gw-nl1.philips.com (8.6.10/8.6.10-0.994n-08Nov95) id RAA07946 for ; Fri, 20 Dec 1996 17:17:17 +0100 Received: from unknown(130.139.36.3) by gw-nl1.philips.com via smap (V1.3+ESMTP) with ESMTP id sma007727; Fri Dec 20 17:16:45 1996 Received: from giga.lss.cp.philips.com (giga.lss.cp.philips.com [130.144.199.31]) by smtprelay.nl.cis.philips.com (8.6.10/8.6.10-1.2.1m-961216) with SMTP id RAA02878 for ; Fri, 20 Dec 1996 17:16:43 +0100 Received: by giga.lss.cp.philips.com (8.8.4/1.63) id RAA07474; Fri, 20 Dec 1996 17:16:43 +0100 (MET) From: security@giga.lss.cp.philips.com (Walter Belgers for mailing lists) Message-Id: <199612201616.RAA07474@giga.lss.cp.philips.com> Subject: Re: stopping users from rebooting with ctr-alt-del To: freebsd-security@freebsd.org Date: Fri, 20 Dec 1996 17:16:42 +0100 (MET) In-Reply-To: from Snob Art Genre at "Dec 20, 96 07:22:54 am" X-Mailer: ELM [version 2.4ME+ PL19 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-security@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Snob Art Genre writes: > > > > > Why would you need use ctrl-alt-del to reboot the machine ? > > 1. it's not a shutdown (it doesn't resync, anyhow) > > I believe this is incorrect. Indeed it nicely syncs disks. > I think ctrl-alt-del syncs buffers and otherwise shuts down the machine > "nicely". I may be wrong. No, you're right. At a student society I set up a FreeBSD system and we found students hitting CTRL-ALT-DEL to get Windows (they didn't understand the login: prompt, sheesh) so we remapped reboot to CTRL-ALT-R. We wanted to keep the option in case the system was crashed to an extent that logging in was impossible but CTRL-ALT-R would still work. E.g. when we were still running 1.1.5.1 and switching virtual consoles when X was shutting down would nuke the screen. Walter. -- Ir. W.H.B. Belgers, Internet Security Specialist phone: +31 40 2782753 Origin IT Syst.Man. /Nederland bv, Bldg VN-513 email: fax: +31 40 2784697 P.O. Box 218, 5600 MD Eindhoven, Netherlands W.Belgers@nl.cis.philips.com http://www.cis.philips.com/home/W.Belgers http://www.IAEhv.nl/users/gigawalt