Date: Fri, 21 Mar 1997 11:30:09 +0800 (WST) From: Adrian Chadd <adrian@obiwan.aceonline.com.au> To: "K. Marsh" <durang@u.washington.edu> Cc: questions@freebsd.com Subject: Re: chmod, chown, and shutdown. Message-ID: <Pine.BSF.3.95q.970321112532.3691A-100000@obiwan.aceonline.com.au> In-Reply-To: <Pine.A32.3.95.970320160858.52298D-100000@goodall.u.washington.edu>
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On Thu, 20 Mar 1997, K. Marsh wrote: > My roomate uses my computer to check his e-mail and do a little web > browsing in FreeBSD, as well as to use Word, Excel, and other expensive > programs in that other operating system. > Poor thing, I feel sorry for them :) > How can I give him the ability to issue "shutdown" without giving him root > privileges? > > I am aware that it may be a security hole, but he's not going to hack my > system. I just don't want him to able to destroy everything by accident. > Ctrl-Alt-Del on the FreebSD console will work fine (the same key combo as in DOS :) > I tried using chmod and chown on the binary, but even when he owns it and > it's in 777 mode, it doesn't execute. > It needs to b run as root (either by root, or setuid root) for shutdown to work.. the default (on my system, 2.2-GAMMA) is chown root.operator, and chmod 4750 (so root can run it, and people in the operator group can run it setuid to root, but noone else). > I'm using 2.2-RELEASE if it makes any difference. > > Thanks, Ken Marsh > > Cya.. Adrian Chadd <adrian@psinet.net.au>
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