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Full Discussion: Limiting access
Top Forums UNIX for Dummies Questions & Answers Limiting access Post 1317 by Neo on Friday 23rd of February 2001 06:06:57 PM
Old 02-23-2001
CHROOT

To do as you wish, you could use chroot in the /etc/password file in the last field (where the shell is). For example, to make the user have a root of /home/misha, then you would change the final field in /etc/password to be something like:

Code:
/usr/bin/chroot /usr/misha /bin/sh

In most implementations (and the GNU version) the shell does not have do be specified because without an argument the default shell is the command.

As PxT suggests, chroot is the approach. However, building a chroot environment can be tricky because commands that a user would normally have access to are not available unless explicitly under the new chroot directory. In other words, you must build a new environment under the new pseudo root file system and provide all commands.

This could be difficult for newbies, but it can be done I suggest reading the chroot manpage and supporting documents carefully.
 

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CHROOT(1)                                                          User Commands                                                         CHROOT(1)

NAME
chroot - run command or interactive shell with special root directory SYNOPSIS
chroot NEWROOT [COMMAND [ARG]...] chroot OPTION DESCRIPTION
Run COMMAND with root directory set to NEWROOT. --help display this help and exit --version output version information and exit If no command is given, run ``${SHELL} -i'' (default: /bin/sh). AUTHOR
Written by Roland McGrath. REPORTING BUGS
Report chroot bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
chroot(2) The full documentation for chroot is maintained as a Texinfo manual. If the info and chroot programs are properly installed at your site, the command info coreutils 'chroot invocation' should give you access to the complete manual. GNU coreutils 7.1 July 2010 CHROOT(1)
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