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Full Discussion: FTP user access
Top Forums UNIX for Dummies Questions & Answers FTP user access Post 33750 by RTM on Friday 17th of January 2003 01:21:07 PM
Old 01-17-2003
NO Shell access is easy - set the shell in the /etc/passwd file to something like /etc/ftponly which can be a non-existent file or one with the following:

#! /bin/sh
#
# @(#)true.sh 1.5 88/02/07 SMI; from UCB
#
umask 002
exit 0

As long as /etc/ftponly is not listed in /etc/shells, you will not be allowed to login (but can still ftp in). If you list /etc/ftponly in /etc/shells, then the above shell will keep anyone from logging in except via ftp.

As far as keeping the person in a directory...I don't believe that the normal ftpd allows setting this up. There are free ftp daemons that will do this and more. One is WU-FTP. Others have posted answers to this in the past - try a search for 'ftp free'.
 

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CHSH(1) 							   User Commands							   CHSH(1)

NAME
chsh - change your login shell SYNOPSIS
chsh [-s shell] [-l] [-u] [-v] [username] DESCRIPTION
chsh is used to change your login shell. If a shell is not given on the command line, chsh prompts for one. chsh is used to change local entries only. Use ypchsh, lchsh or any other implementation for non-local entries. OPTIONS
-s, --shell shell Specify your login shell. -l, --list-shells Print the list of shells listed in /etc/shells and exit. -u, --help Print a usage message and exit. -v, --version Print version information and exit. VALID SHELLS
chsh will accept the full pathname of any executable file on the system. However, it will issue a warning if the shell is not listed in the /etc/shells file. On the other hand, it can also be configured such that it will only accept shells listed in this file, unless you are root. EXIT STATUS
Returns 0 if operation was successful, 1 if operation failed or command syntax was not valid. SEE ALSO
login(1), passwd(5), shells(5) AUTHOR
Salvatore Valente <svalente@mit.edu> AVAILABILITY
The chsh command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux July 2009 CHSH(1)
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