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Date:      Wed, 5 Jun 2002 16:27:18 +0300 (EEST)
From:      Alexander V Zubchenko <stalker@hermes-comp.zp.ua>
To:        Matthias Buelow <mkb@informatik.uni-wuerzburg.de>
Cc:        Admin/Manager <leroy@3dmasters.net>, <freebsd-questions@FreeBSD.ORG>
Subject:   Re: SHELL ACCESS
Message-ID:  <20020605161954.P42835-100000@server.hermes-comp.zp.ua>
In-Reply-To: <20020605131719.GB1211@reiher.informatik.uni-wuerzburg>

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Greetings!

On Wed, 5 Jun 2002, Matthias Buelow wrote:

> Alexander V Zubchenko writes:
>
> >I don't know about such features in shells, but you may play around with
> >access permissions (e.g. make anything world-inaccessible, place users in
> >nobody group and set rights so anything will b protected from access,
> >excepting home).
>
> Commercial systems typically have a "restricted shell" command, sometimes
> under the name rsh (colliding with the remote shell, which is called remsh
> on such systems.)  On FreeBSD, I think the (original) KornShell (ksh)
> and GNU bash can be run in restricted mode.  It disables cd, and some other
> builtins but it of course does not restrict programs that got invoked
> by the user, so you have to be selective about which programs the user
> is allowed to run.  vi(1) also can be run in restricted mode.
>
>
> --mkb
>
>
Thx for info. I'v checked ports collection and find those shells:

flash - A ncurses-based restriction shell

With best regards, Alexander


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