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Date:      Wed, 14 Jun 2000 11:09:35 -0700
From:      "Raymundo M. Vega" <RaymundoVega@home.com>
To:        James Howard <howardjp@wam.umd.edu>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Limiting Internet Access
Message-ID:  <3947CA5F.28008858@home.com>
References:  <200006141649.MAA01241@rac4.wam.umd.edu>

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A simple solution is to use a specific group for your
users and change permissions deniying execution of
programs like telnet, ftp, etc. typing as root:

cd /usr/bin
chmod 750 telnet
chmod 750 ftp
etc
etc

raymundo

James Howard wrote:
> 
> Hey everyone.  We are currnetly moving our BBS (www.arbornet.org) from
> BSD/OS to FreeBSD.  One of the limits we placed on users was that they
> were not allowed to send outbound Internet traffic (ie, they could not
> telnet out from our system, etc).
> 
> Under BSD/OS (3.0) the kernel had been patched and checked for a
> hard-coded list of groups (paying users had access, special binaries like
> finger too).  But I have heard that under FreeBSD, limiting like this is
> is run-time configurable.  How does this work?
> 
> Thanks, Jamie
> 
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