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Full Discussion: disallow change directory
Operating Systems AIX disallow change directory Post 302591049 by smurphy_it on Wednesday 18th of January 2012 10:18:54 AM
Old 01-18-2012
One such method
Well one such method would be this:

create the user as usual, but give them the home directory as /data06/ABC01 and give them a shell of /bin/false.

So they would look this this in the /etc/passwd file:
TestFTP:x:1007:33:Chroot account for abc:/data06/ABC01:/bin/false
(of course the UID and GID #'s would be different)

Next, edit /etc/ssh/sshd_config and add the following:
Code:
Match User TestFTP
      ChrootDirectory /data06/ABC01
      ForceCommand internal-sftp
      X11Forwarding no
      AllowTcpForwarding no

This will enable the user to sftp in and have access to /data06/ABC01 and any folders below it. I see a couple of problems here:
* the .profile doing a cd /data06/ABC01 won't work, as it's a chroot environment. This can be commented out.
* As the chrootDirectory is /data06/ABC01 both would have to be root owned with no write access for group and/or everyone. If you require RW to the ABC01 directory, this is going to give problems (and you've requested no access to /data06).

A method I've implemented with another product seems to work fine (but uses ftps instead) was to install proftpd with SSl/TLS support compiled in.
Set it up to use a chrootDirectory, and make it /data06/ABC01 (for either TestFTP user or all users). This will allow rw access to /data06/ABC01, and have no access to /data06
Last edited by smurphy_it; 01-18-2012 at 11:28 AM.. Reason: Additional suggestion
 

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LEARN ABOUT MOJAVE

mount_ftp

MOUNT_FTP(8)						    BSD System Manager's Manual 					      MOUNT_FTP(8)

NAME

     mount_ftp -- mount a FTP filesystem

SYNOPSIS

     mount_ftp [-i] [-o options] ftp://host[:port][/path] node

DESCRIPTION

     The mount_ftp command mounts a FTP-enabled server directory at ftp://host[:port][/path] at the mount point indicated by node.

     If the -i option is not used, all the required information to establish a login to the remote server must be available in the ftp URL,
     including username & password if needed.

     The user ID for all files and folders is set to the user's real user ID. The group ID for all files and directories is set to unknown, and
     the permissions default to read and execute for user, group and other.

     The options are:

     -i      Interactive mode, you are prompted for the username and password if you did not supply one in the url.

     -o      Options passed to mount(2) are specified with the -o option followed by a comma separated string of options. See the mount(8) man
	     page for possible options and their meanings. The rdonly option will be set even if it was not specified because mount_ftp does not
	     allow files to be opened with write access on servers.

     ftp://host[:port][/path]
	     The FTP-enabled server directory to mount as a volume. If port is not specified, then port 21 is used. If path is not specified, then
	     the path "/" is used.

     node    Path to mount point.

EXAMPLES

     The following example illustrates how to mount the FTP-enabled server directory ftp.apple.com/ at the mount point /Volumes/mntpnt/

	   mount_ftp ftp://ftp.apple.com/ /Volumes/mntpnt/

SEE ALSO

     mount(2), unmount(2), mount(8)

HISTORY

     The mount_ftp command first appeared Mac OS X Version 10.2.

RETURN VALUES

     0			mount_ftp successfully mounted the server directory.

     [ENOENT]		The server directory could not be mounted by mount_ftp because the node path is invalid.

     [ENODEV]		The server directory could not be mounted by mount_ftp because it is not FTP-enabled or because it does not exist, or
			because node does not have proper access.

     [ECANCELED]	The server directory could not be mounted by mount_ftp because the user did not provide proper authentication credentials.

BUGS

     mount_ftp only supports mounting read-only.

Mac OS X							   June 6, 2003 							  Mac OS X
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