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Special Forums Cybersecurity SFTP passwordless (kind of works) Post 302633919 by jim mcnamara on Wednesday 2nd of May 2012 04:15:29 PM
Old 05-02-2012
You will have to create a single directory with 1777 permissions so they can all read/write there. Create an account like dummy_sftp that can ONLY get to that directory.

Then put all of the users public keys into dummy_sftp's .ssh/authorized_keys file.
You will have a problem if every user has identical file names they move around. Also, this is NOT secure. So if some of those files are protected data like HIPAA or payroll you have another problem because any user who can sftp there can get any file and read it.

google 'howto chroot' an sftp account to see how to do this.
 

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GUARDS(1)						User Contributed Perl Documentation						 GUARDS(1)

NAME
guards - select from a list of files guarded by conditions SYNOPSIS
guards [--prefix=dir] [--path=dir2:dir2:...] [--default=0|1] [-v|--invert-match] [--list|--check] [--config=file] symbol ... DESCRIPTION
The script reads a configuration file that may contain so-called guards, file names, and comments, and writes those file names that satisfy all guards to standard output. The script takes a list of symbols as its arguments. Each line in the configuration file is processed separately. Lines may start with a number of guards. The following guards are defined: +xxx Include the file(s) on this line if the symbol xxx is defined. -xxx Exclude the file(s) on this line if the symbol xxx is defined. +!xxx Include the file(s) on this line if the symbol xxx is not defined. -!xxx Exclude the file(s) on this line if the symbol xxx is not defined. - Exclude this file. Used to avoid spurious --check messages. The guards are processed left to right. The last guard that matches determines if the file is included. If no guard is specified, the --default setting determines if the file is included. If no configuration file is specified, the script reads from standard input. The --check option is used to compare the specification file against the file system. If files are referenced in the specification that do not exist, or if files are not enlisted in the specification file warnings are printed. The --path option can be used to specify which directory or directories to scan. Multiple directories are separated by a colon (":") character. The --prefix option specifies the location of the files. AUTHOR
Andreas Gruenbacher <agruen@suse.de> (SuSE Linux AG) perl v5.14.2 2012-03-04 GUARDS(1)
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