From owner-freebsd-security Fri Dec 20 07:22:58 1996 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id HAA23113 for security-outgoing; Fri, 20 Dec 1996 07:22:58 -0800 (PST) Received: from narcissus.ml.org (brosenga.st.pitzer.edu [134.173.120.201]) by freefall.freebsd.org (8.8.4/8.8.4) with ESMTP id HAA23108 for ; Fri, 20 Dec 1996 07:22:55 -0800 (PST) Received: (from ben@localhost) by narcissus.ml.org (8.7.5/8.7.3) id HAA08795; Fri, 20 Dec 1996 07:22:54 -0800 (PST) Date: Fri, 20 Dec 1996 07:22:54 -0800 (PST) From: Snob Art Genre To: Igor Roshchin cc: Sean Winn , freebsd-security@FreeBSD.org Subject: Re: stopping users from rebooting with ctr-alt-del In-Reply-To: <199612201504.JAA23349@alecto.physics.uiuc.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-security@FreeBSD.org X-Loop: FreeBSD.org Precedence: bulk On Fri, 20 Dec 1996, Igor Roshchin wrote: > > > > I can already see a nice simple problem, in that it would only work after > > login...if you need to shutdown because you can't login for some reason > > (exhausted swap space because of a nasty process?), then this makes things > > difficult...but it should help machines in public places around people who > > have too much curiosity. > > > > 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. > 2. if you need to "reboot" it no matter what - > use the power switch, or "reset" button if one is present. > May be I am wrong, but I don't see bug difference [for Unix] > between ctrl-alt-del and "reset" . I think ctrl-alt-del syncs buffers and otherwise shuts down the machine "nicely". I may be wrong. > In a public place I would also disable "reset" and "power" button > Yes . . . in general I think allowing people physical access to a machine is a big risk. Anyone with a screwdriver and five minutes can remove your hard drive, after all. > (I've seen so many time how our HPs were rebooted by users) > > > IgoR > aka StR > > Ben The views expressed above are not those of the Worker's Compensation Board of Queensland, Australia.