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From: Nikos Chantziaras <realnc@gmail.com>
Subject: [gentoo-user] Re: How to poweroff the system from user?
Date: Mon, 23 Mar 2015 01:18:30 +0200
Organization: Lucas Barks
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References: <20150321152656.a82a84b3e8a32c8b68554548@gmail.com> <2098241.ygyfAjpUPx@wstn> <mem7kc$jth$1@ger.gmane.org> <1973791.yPhV807uKP@wstn> <20150322155852.GA1081@ca.inter.net> <men497$55b$1@ger.gmane.org> <20150322201204.GB1081@ca.inter.net>
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On 22/03/15 22:12, Philip Webb wrote:
> 150322 Nikos Chantziaras wrote:
>> On 22/03/15 17:58, Philip Webb wrote:
>>> If you have multiple users,
>>> you don't want some rogue user rebooting randomly
>> You can't stop a local user from doing that.
>> As mentioned, the reset button works just fine. You really do want
>> those users to reboot the system properly rather than pressing reset.
>> Environments where the machine is locked away
>> with only the keyboard being accessible are far less common
>> than people sitting in front of the actual machine.
>
> We're picturing different set-ups : I'm thinking of a campus system,
> where the machine is in a locked room accessible to the sysadmin (root)
> & users log in somewhere else via machines which act as terminals ;
> you are perhaps refering to a family or small-office machine,
> where there are no other means of access, but users log in separately.
> You are correct in the latter case.
Well, remote logins can't reboot with ctrl+alt+del. That's reserved only
for the users using the actual console. Meaning the keyboard hooked up
to the machine with the PS/2 or USB cable.
SSH login or thin clients can't reboot. If you press ctrl+alt+del on the
terminal machine, that's only going to reboot the terminal machine. We
had such a setup using Sun Rays in the past. Non-console logins are
getting the full security treatment.