[4025] in RedHat Linux List
Re: permissions of 'wall'
daemon@ATHENA.MIT.EDU (Steve \"Stevers!\" Coile)
Tue Nov 12 08:25:07 1996
Date: Tue, 12 Nov 1996 08:22:20 -0500 (EST)
From: "Steve \"Stevers!\" Coile" <scoile@patriot.net>
To: Robert Hart <hartr@interweft.com.au>
cc: Red Hat Mailing List <redhat-list@redhat.com>
In-Reply-To: <Pine.LNX.3.95.961112204958.5154Y-100000@archenland.interweft.com.au>
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
On Tue, 12 Nov 1996, Robert Hart wrote:
> On Mon, 11 Nov 1996, Borg wrote:
>
> > Try this on your command line: it screwes up
> > all tty's and pty's of all users:
> >
> > echo -e "\033c\033(0\033#8\033[1;3r\033[J\033[5m\033[?5h"|wall
> >
> > Very unpleasant because someone with user access can
> > temporarily interrupt anything others (including root)
> > are doing on their consoles/xterms.
>
> Blech - that's terrible.
> chmod 550 /usr/bin/wall
>
> That gets rid of that one...now, is there a problem with this?
You should make the same change to /usr/bin/write, since it's trivial
to use write to achieve the same results as wall.
--
Steve Coile P a t r i o t N e t Systems Engineering
scoile@patriot.net Patriot Computer Group (703) 277-7737
--
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