Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!banyc!atina!secyt!peter
From: peter@secyt.edu.ar (Pedro Victor Pintus)
Newsgroups: comp.unix.admin
Subject: Re: user owns login tty
Message-ID: <479@secyt.edu.ar>
Date: 6 Dec 90 20:17:16 GMT
References: <1174@aut.autelca.ascom.ch> <109706@convex.convex.com>
Reply-To: peter@secyt.edu.ar (Pedro Victor Pintus)
Organization: Secretaria de Ciencia y Tecnica, Argentina
Lines: 37

In article <109706@convex.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
>In article <1174@aut.autelca.ascom.ch> dhuber@aut.autelca.ascom.ch (Daniel Huber) writes:
>>I'm not a unix "specialist" at the moment (probably in future..hi guys)
>>:-)
>>
>>Ok. Here is my question:
>>
>>Whenever somebody logs in on the system console he owns the device
>>/dev/console.
>>He can do everything with it. Even delete it. 
>
>Only circumstantially.  Ownership of a file has nothing to do with
>deleting it in UNIX.  Check out the permissions on /dev.  Make them mode
>0755, owner root.bin, or whatever group makes sense on your system.  Of
>course, if they're the superuser, it can still happen.
>
>--tom

BTW, if the user is logged in /dev/console, the system is (high probably)
in single user (maintenance) mode, which implies: a) those user _is_
the system admin or b) the sysadm is so foolish to leave the system open to
people in single user mode (aka System maintenance mode).
In any case is _their_ fault if he later has his head screwed on with the
big trouble of re-install the console device in order to be capable of
boot the system.


Cheers,
Peter.
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|  Pedro Victor Pintus                          |
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