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Top Forums Shell Programming and Scripting Use of stty vs trap in script-driven login menu Post 302607836 by Clovis_Sangrail on Thursday 15th of March 2012 12:15:08 PM
Old 03-15-2012
Hi Guys,
Thanks for the replies and advice.

I thought about chroot, I may try that. As they so often are, the requirements for this task are very nebulous, but I get a sense that part of what I am doing is protecting DBA's from each other, so moving them all into the same chroot'ed envionment may not be a good idea.

The environment is AIX, and I understand that AIX has something alot like Solaris Zones, called logical partions or LPARs. Maybe I should look at that, if they are like Zones then I can give everybody read-only access to one set of executables w/o using any more storage.

I too am interested in specifically why replacing the user's login shell is a bad idea, beyond the obvious objections like I could write a crappy script, etc.
 

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chroot(1M)																chroot(1M)

NAME
chroot - change root directory for a command SYNOPSIS
newroot command DESCRIPTION
The command executes command relative to the newroot. The meaning of any initial slashes in path names is changed for command and any of its children to newroot. Furthermore, the initial working directory is newroot. Note that command suffixes that affect input or output for the command use the original root, not the new root. For example, the command: locates file relative to the original root, not the new one. The command variable includes both the command name and any arguments. The new root path name is always relative to the current root. Even if a is currently in effect, the newroot argument is relative to the current root of the running process. This command is restricted to users with appropriate privileges. EXTERNAL INFLUENCES
International Code Set Support Single- and multibyte character code sets are supported. WARNINGS
command cannot be in a shell script. Exercise extreme caution when referring to special files in the new root file system. does not search the environment variable for the location of command, so the absolute path name of command must be given. When using to establish a new environment, all absolute path name references to the file system are lost, rendering shared libraries inac- cessible. If continued access to shared libraries is needed for correct operation, the shared libraries and the dynamic loader be copied into the new root environment. SEE ALSO
chdir(2), chroot(2). STANDARDS CONFORMANCE
chroot(1M)
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