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Date:               Wed, 17 May 1995 15:53:11 EST
From:      "Christian" <PLAZAS_CHRISTIAN@mercury.csg.peachnet.edu>
To:        security@FreeBSD.org
Subject:         Disabling subshell spawn in Telnet & Ftp clients
Message-ID:  <5364FB10FE9@mercury.csg.peachnet.edu>

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    I am in the process of setting up a FreeBSD box for student use 
at my school.  I am restricting what a user can do through a menu 
system that they cannot break out of....there is only one 
problem...two of the menu choices are FTP and Telnet.  Both of these 
clients have a command that will allow the user to get a subshell...I 
want to be able to disable this option.  I know that some freenets 
that allow telnet & ftp have done this so I know it can be done.  I 
am no C guru so please take this into consideration when you reply.
Thanks in advance.

Christian Plazas 







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