From: "Joel C. Salomon" <joelcsalomon@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] A note about new software for Plan 9
Date: Tue, 12 Mar 2013 10:57:53 -0400 [thread overview]
Message-ID: <CAFUtaNFXmgg5dy+23fSKOpP9L9K0c+zYpo17EJZn=9dOcDeziA@mail.gmail.com> (raw)
In-Reply-To: <20130312035255.8C0CEB834@mail.bitblocks.com>
On Mon, Mar 11, 2013 at 11:52 PM, Bakul Shah <bakul@bitblocks.com> wrote:
> To do something similar you will have to constrain each jail
> to see a subset of processes, give it its own /dev, /env etc.
> Not sure how you do this.
So long as processes in the jail use /dev, /env, etc., etc., as
inherited from/shared with their parent processes, this seems doable,
if tedious: provide a synthetic file system that shows a limited view
on /dev, /env, etc.
But the child process can always mount #x for various x, and get out of jail.
—Joel
next prev parent reply other threads:[~2013-03-12 14:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 3:17 mycroftiv
2013-03-12 3:52 ` Bakul Shah
2013-03-12 14:57 ` Joel C. Salomon [this message]
2013-03-12 14:59 ` erik quanstrom
2013-03-12 18:27 ` Bakul Shah
-- strict thread matches above, loose matches on Subject: below --
2013-03-13 2:51 mycroftiv
2013-03-12 4:20 mycroftiv
2013-03-12 5:56 ` Bakul Shah
2013-03-12 12:33 ` sl
2013-03-12 1:22 mycroftiv
2013-03-12 1:26 ` erik quanstrom
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