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Full Discussion: File permission
Operating Systems Linux Ubuntu File permission Post 302550508 by Corona688 on Friday 26th of August 2011 02:41:08 AM
Old 08-26-2011
You don't have to cd to do things. / in parameters isn't restricted.

Code:
nano path/to/file

mv /path/to/this path/to/that

This won't restrict him from editing things outside of drupal though. You could use user file ownership and permissions to do that.

Come to think of it, the whole "restrict to one directory" thing is a bit of a red herring for any operating system with relative and absolute paths. Any user can cd into /usr/, but can they edit files in there? Probably not. Any user can create files in /tmp/, but do they cd into /tmp/ when they do so? Probably not. cd is just a convenience, file permissions are what control the actual security.

Better to consider file ownership than what directory he's in. You could make him use a limited user where the drupal folder and things in it belong to his user. He could cd other places, but so what? He wouldn't be able to accomplish much by doing so.

Last edited by Corona688; 08-26-2011 at 03:53 AM..
 

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DH_FIXPERMS(1)							     Debhelper							    DH_FIXPERMS(1)

NAME
dh_fixperms - fix permissions of files in package build directories SYNOPSIS
dh_fixperms [debhelperoptions] [-Xitem] DESCRIPTION
dh_fixperms is a debhelper program that is responsible for setting the permissions of files and directories in package build directories to a sane state -- a state that complies with Debian policy. dh_fixperms makes all files in usr/share/doc in the package build directory (excluding files in the examples/ directory) be mode 644. It also changes the permissions of all man pages to mode 644. It removes group and other write permission from all files. It removes execute permissions from any libraries, headers, Perl modules, or desktop files that have it set. It makes all files in the standard bin and sbin directories, usr/games/ and etc/init.d executable (since v4). Finally, it removes the setuid and setgid bits from all files in the package. When the Rules-Requires-Root field has the (effective) value of binary-targets, dh_fixperms will also reset the ownership of all paths to "root:root". OPTIONS
-Xitem, --exclude item Exclude files that contain item anywhere in their filename from having their permissions changed. You may use this option multiple times to build up a list of things to exclude. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_FIXPERMS(1)
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