Peter Humphrey <pe...@prh.myzen.co.uk> writes: > The remaining question is: why is the user not allowed to halt it?
It's because a user who wants to somewhat permanently disrupt the services the machine provides would need to remain at the keyboard to continue to reboot it and thus can be caught more easily than a user who shuts the machine down and then escapes. This is assuming that a user who does such things isn't smart enough to enter the BIOS setup before they escape, which characterizes users doing such things. That leaves the question why a user who isn't even logged in should be able to reboot, which IIRC they can by default with Ctrl+Alt+Del. Such users shouldn't be allowed to do anything but to log in. -- Again we must be afraid of speaking of daemons for fear that daemons might swallow us. Finally, this fear has become reasonable.
