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From: Eris Discordia <eris.discordia@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Using the Acme Editor
Date: Wed, 20 Aug 2008 13:56:51 +0100	[thread overview]
Message-ID: <9857CD0765466E1BE9BD9051@computer> (raw)

>  The ascii that is 8 bits is not the true ascii.

I answered that one.

>  No. Private namespaces.

And how does that solve the problem of whom to trust with mounting? Or with
configuring a network interface? If someone has access to, say, eth0 then
they have access to eth0. No amount of private namespaces keeps them from
reading everything that goes through eth0, including other users'
unencrypted traffic.

Plan 9's model says if you have physical access to a terminal there is no
way to secure _that_ terminal against your mischief. Therefore, it totally
trusts you _that_ terminal. However, your home computer doesn't run only a
terminal. To be usable, it has to run at least a cpu and an auth, in
addition to a term. Now, where is the difference between running
authentication on the same machine as the terminal and the traditional UNIX
way of keeping authentication/authorization databases on each machine? Or
from Kerberos' distributed authentication model?

>  Sorry, that should have been "no such file or directory". You need a
> mkdir.

The directory could've been there beforehand. In any case, your deflection
has nothing to do with the fact that Pietro Gagliardi's demand for "a few
commands" to accomplish a certain task has been supplied with an adequate
UNIX answer.

He's under the false impression that abstraction actually _does_ things,
and that because Plan 9 has an everything-is-a-file model it is any more
trivial to access a cell phone over its proprietary communication protocol
over the cellular network. An impression perpetuated by the 9people.

--On Wednesday, August 20, 2008 5:53 PM +0800 sqweek <sqweek@gmail.com>
wrote:

> On Wed, Aug 20, 2008 at 5:15 PM, Eris Discordia
> <eris.discordia@gmail.com> wrote:
>>>  Wow. Does memorising codepoints fall under your job description aswell?
>>
>> No. I looked it up in Microsoft Windows' Character Map. Saw it was below
>> 255. Knew UTF-8 corresponds to ASCII in lower character codes (not sure
>> 7-bit or 8-bit). Figured it could as well be 8-bit ASCII.
>
>  The ascii that is 8 bits is not the true ascii.
>
>>>  ifconfig: only root can do that
>>>  mount: only root can do that
>>
>> Funny, but then not funny.
>>
>> What's the Plan 9 way of solving that? Trusting the user at the terminal?
>
>  No. Private namespaces.
>
>>>  cp: /mnt/cell: permission denied
>>
>> Why "permission denied?"
>
>  Sorry, that should have been "no such file or directory". You need a
> mkdir. -sqweek
>



             reply	other threads:[~2008-08-20 12:56 UTC|newest]

Thread overview: 117+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-20 12:56 Eris Discordia [this message]
2008-08-20 18:08 ` sqweek
2008-08-20 18:58   ` erik quanstrom
2008-08-20 19:47     ` sqweek
  -- strict thread matches above, loose matches on Subject: below --
2008-08-24 17:13 Eris Discordia
2008-08-25  3:57 ` Michaelian Ennis
2008-08-24 16:52 Eris Discordia
2008-08-24  8:20 erik quanstrom
2008-08-21 17:36 Eris Discordia
2008-08-21 20:39 ` ron minnich
2008-08-21 22:11   ` Eris Discordia
2008-08-22  2:58     ` Federico G. Benavento
2008-08-22  6:13     ` Andrew Simmons
2008-08-22  9:41       ` hiro
2008-08-21 17:20 Eris Discordia
2008-08-21 16:39 Eris Discordia
2008-08-21 17:11 ` ron minnich
2008-08-21 18:29   ` hiro
2008-08-20 23:49 Eris Discordia
2008-08-20 21:46 Eris Discordia
2008-08-20 22:41 ` Pietro Gagliardi
2008-08-20 23:15 ` Geoffrey Avila
2008-08-21  7:42 ` Uriel
2008-08-21 10:58   ` erik quanstrom
2008-08-21 13:25     ` john
2008-08-21 13:31     ` David Leimbach
2008-08-21 16:59   ` Eris Discordia
2008-08-21 17:14     ` ron minnich
2008-08-21 10:36 ` erik quanstrom
2008-08-20 13:01 Eris Discordia
2008-08-20 13:22 ` Sander van Dijk
2008-08-20 12:36 Eris Discordia
2008-08-20  9:44 Eris Discordia
2008-08-20  9:34 Eris Discordia
2008-08-20 11:56 ` Robert William Fuller
2008-08-20 12:25   ` Eris Discordia
2008-08-20  9:03 Eris Discordia
2008-08-20  8:33 Eris Discordia
2008-08-20  8:29 Eris Discordia
2008-08-20  8:04 Eris Discordia
2008-08-20  1:39 Eris Discordia
2008-08-20  2:08 ` Pietro Gagliardi
2008-08-20  2:13 ` Iruata Souza
2008-08-20  8:08   ` Eris Discordia
2008-08-20  5:02 ` sqweek
2008-08-20  9:15   ` Eris Discordia
2008-08-20  9:44     ` Sander van Dijk
2008-08-20  9:53     ` sqweek
2008-08-20 10:12     ` matt
2008-08-20 12:27       ` Bruce Ellis
2008-08-20 16:23     ` Iruata Souza
2008-08-20  8:10 ` Steve Simon
2008-08-20  0:30 Eris Discordia
2008-08-20  3:34 ` geoff
2008-08-20  3:43   ` Pietro Gagliardi
2008-08-20  3:48     ` Bruce Ellis
2008-08-20  8:42   ` Eris Discordia
2008-08-20  0:10 Eris Discordia
2008-08-20  2:29 ` a
2008-08-20  8:01 ` Steve Simon
2008-08-19 23:51 Eris Discordia
2008-08-20  0:30 ` Pietro Gagliardi
2008-08-20  1:31 ` Iruata Souza
2008-08-20  1:43   ` Eris Discordia
2008-08-20  2:00     ` Pietro Gagliardi
2008-08-20  7:03       ` Eris Discordia
2008-08-20  7:36         ` bb
2008-08-21  0:03     ` Dan Cross
2008-08-24  7:27 ` John Waters
2008-08-24 18:14   ` Eris Discordia
2008-08-25  5:43     ` John Waters
2008-08-19 22:00 Eris Discordia
2008-08-19 22:12 ` andrey mirtchovski
2008-08-19 23:14   ` Eris Discordia
2008-08-20  3:12   ` Skip Tavakkolian
2008-08-20  3:17     ` andrey mirtchovski
2008-08-20  8:31     ` Eris Discordia
2008-08-19 22:14 ` Francisco J Ballesteros
2008-08-19 22:26   ` Steve Simon
2008-08-19 23:27   ` Eris Discordia
2008-08-19 23:36     ` Jonathan Cast
2008-08-20  0:42       ` Eris Discordia
2008-08-20  2:08     ` a
2008-08-20  8:06       ` Eris Discordia
2008-08-20  3:26     ` Skip Tavakkolian
2008-08-20  3:31       ` Bruce Ellis
2008-08-20  8:41       ` Eris Discordia
2008-08-19 22:25 ` Pietro Gagliardi
2008-08-19 22:31   ` Pietro Gagliardi
2008-08-19 22:46     ` Federico G. Benavento
2008-08-20  0:31       ` Eris Discordia
2008-08-19 23:03     ` Benjamin Huntsman
2008-08-20  0:34       ` Eris Discordia
2008-08-20  0:58         ` Benjamin Huntsman
2008-08-19 22:34 ` erik quanstrom
2008-08-20  3:11 ` Skip Tavakkolian
2008-08-19 15:52 Wendell xe
2008-08-19 16:01 ` ron minnich
2008-08-19 16:11 ` erik quanstrom
2008-08-19 21:23   ` Lyndon Nerenberg
2008-08-19 16:31 ` Robert Raschke
2008-08-19 21:00   ` Steve Simon
2008-08-19 17:50 ` Ramon de Vera
2008-08-19 17:58 ` Russ Cox
2008-10-22 12:37   ` Rudolf Sykora
2008-10-23 18:26     ` Rudolf Sykora
2008-10-23 20:17       ` yy
2008-10-24 17:51     ` Russ Cox
2008-10-24 18:17       ` Rudolf Sykora
2009-04-05 16:19       ` Rudolf Sykora
2008-08-19 20:22 ` Pietro Gagliardi
2008-08-19 21:24   ` Iruata Souza
2008-08-20  0:28     ` David Leimbach
2008-08-20  3:54 ` Pietro Gagliardi
2008-08-20  3:56   ` Bruce Ellis
2008-08-20  8:48   ` Eris Discordia
2008-08-20  9:21     ` matt

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