Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder1.xlned.com!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <rosuav@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.002
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'root': 0.05; 'subject:code': 0.07; 'remotely,': 0.09; 'subject:while': 0.09; 'system?': 0.09; 'things,': 0.09; 'works.': 0.09; 'cc:addr:python- list': 0.11; 'gui': 0.12; '12:50': 0.16; 'administer': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'pressing': 0.16; 'screen,': 0.16; 'ssh,': 0.16; 'subject:GUI': 0.16; 'underlying': 0.16; 'subject:python': 0.16; 'sat,': 0.16; 'wrote:': 0.18; 'else,': 0.19; '>>>': 0.22; 'aug': 0.22; 'cc:addr:python.org': 0.22; 'instance,': 0.24; 'cc:2**0': 0.24; 'login': 0.25; 'sort': 0.25; 'equivalent': 0.26; 'right.': 0.26; 'switch': 0.26; '(for': 0.26; 'header:In-Reply-To:1': 0.27; 'tried': 0.27; 'leave': 0.29; 'am,': 0.29; 'unix': 0.29; 'message- id:@mail.gmail.com': 0.30; 'that.': 0.31; "d'aprano": 0.31; 'prevention': 0.31; 'steven': 0.31; 'allows': 0.31; 'linux': 0.33; 'running': 0.33; 'fri,': 0.33; 'maybe': 0.34; 'display': 0.35; 'something': 0.35; 'received:google.com': 0.35; 'subject:one': 0.36; 'should': 0.36; 'virtual': 0.37; 'so,': 0.37; 'manager': 0.38; 'desirable': 0.38; 'does': 0.39; 'users': 0.40; 'even': 0.60; 'most': 0.60; 'name': 0.63; 'risk': 0.72; 'locked': 0.84; 'subject:Keep': 0.84; 'device,': 0.91; 'graphical': 0.91; 'to:none': 0.92; 'pc.': 0.93
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=a3jtSTIBW2MWYAaYwkdZWtl46DQoI0/MiUKTsZ2Ucb8=; b=NBu/R8dpdflxO1nIt9M6Y9AnGTXv/6mR+Yl/DblUbelstHNmHhrgx9FQNE68lW4KTA IWqVwo+zroOslHAU/MfLOWawJYzn6mTODBY4IeRotjgb4IOud2xIPfIXWUd7SpND3772 YH0IltWICImdykEd/VJwcRbdDUJXvzBG3fUilWo0dNKYyuHuD1686iKD4DCiuiMWcRy1 4JuDAhaLP57HSfDbL2o3aHN7GC+OtoDyEbnPwWv63hEVWvEYkmJOgGggyNwP75FvlfZs n/AAxplVQ3gbsPZxqh5hRluu4vqb5fOE1iJ/Jmslsa819k/mErSF8b74pBtopVm2wPrA tkdw==
MIME-Version: 1.0
X-Received: by 10.50.176.202 with SMTP id ck10mr6185025igc.2.1407510092325; Fri, 08 Aug 2014 08:01:32 -0700 (PDT)
In-Reply-To: <Ns5Fv.247750$iD.116204@fx22.am4>
References: <e2709e26-d2e9-439a-8af4-7a7a7562ce9e@googlegroups.com> <mailman.12727.1407416270.18130.python-list@python.org> <32f85c79-17a1-4d2f-a926-43812b8083ed@googlegroups.com> <mailman.12736.1407477767.18130.python-list@python.org> <85fvh7icj4.fsf@rudin.co.uk> <mailman.12744.1407490345.18130.python-list@python.org> <53e4d7a0$0$24963$c3e8da3$5496439d@news.astraweb.com> <Ns5Fv.247750$iD.116204@fx22.am4>
Date: Sat, 9 Aug 2014 01:01:32 +1000
Subject: Re: Keep one GUI always on TOP while python code is running
From: Chris Angelico <rosuav@gmail.com>
Cc: "python-list@python.org" <python-list@python.org>
Content-Type: text/plain; charset=UTF-8
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.12753.1407510095.18130.python-list@python.org>
Lines: 28
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1407510095 news.xs4all.nl 2868 [2001:888:2000:d::a6]:59943
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:75895

On Sat, Aug 9, 2014 at 12:50 AM, alister
<alister.nospam.ware@ntlworld.com> wrote:
> On Fri, 08 Aug 2014 23:58:56 +1000, Steven D'Aprano wrote:
>>
>>> (for instance, on all my Linux systems, I can hit Ctrl-Alt-F1 to switch
>>> away from the GUI altogether).
>>
>> Does that work when xscreensaver or equivalent has locked the system? If
>> so,
>> that's a security vulnerability.
>
> I have not tried b=ut is should not be a security risk as you still have
> to log into the virtual terminal.
>
> this may even be desirable if multiple people may administer the PC.

Right. Unix has as its underlying philosophy that users and processes
are the most important things, not interfaces. I can log in to a
computer at a virtual terminal by pressing Ctrl-Alt-F1, or with a
graphical login manager like lightdm, or via ssh, or something else,
and everything works. And if I leave something running under my user
name that allows me to connect remotely, or maybe have something
running as root that can hook in to some sort of user event (off a USB
device, or a secondary mouse, or whatever) that can then display
something on the screen, then no amount of login prevention will
change that.

ChrisA