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Operating Systems AIX How to disable cd to other folder for a user Post 44191 by kduffin on Tuesday 2nd of December 2003 06:45:09 AM
Old 12-02-2003
I have an instance of 5L at the office. I'll have to look at it to verify that it works in 5L as it did in 4.3.3, but do a man on rksh (restricted shell). Changing directories is one of the things that you can disallow. I typically have a /usr/rkshbin directory that has links to the commands available to the user. Combine that with setting the users path in his/her .profile and allowing the group to read, but not own that file. Here's an excerpt from the man page:

rksh is used to set up login names and execution environ-
ments whose capabilities are more controlled than those of
the standard shell. The actions of rksh are identical to
those of ksh, except that the following are disallowed:

o changing directory (see cd(1))

Cheers,

Keith
 

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CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME
chsh - change login shell SYNOPSIS
chsh [options] [LOGIN] DESCRIPTION
The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change the login shell for her own account; the superuser may change the login shell for any account. OPTIONS
The options which apply to the chsh command are: -h, --help Display help message and exit. -R, --root CHROOT_DIR Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory. -s, --shell SHELL The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell. If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks. NOTE
The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser, and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell back to its original value. FILES
/etc/passwd User account information. /etc/shells List of valid login shells. /etc/login.defs Shadow password suite configuration. SEE ALSO
chfn(1), login.defs(5), passwd(5). shadow-utils 4.5 01/25/2018 CHSH(1)
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