Granting access to specific user on a 700 file Post: 303043081

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Top Forums UNIX for Advanced & Expert Users Granting access to specific user on a 700 file Post 303043081 by vbe on Friday 17th of January 2020 04:22:55 PM

01-17-2020

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Quote:

Is it because, the directory is having 700 ?

Yes...

Quote:

Is there a way to accomplish the need?

Not sure I understood all requirement, but I will give an example I do for a dept here:
Statisticians in groupA should be able to execute and modify files of statisticians in GroupB but they are should not see what is in DirB of groupB except the files they know of
I use a common directory DirC, put the executables and files in that directory with 664perms for the data files group owner GroupB, 755 for the executables and and 711 perms for DirC with a statistician of GroupB as owner and responsible for content of this directory...
The use of 711 on directory makes its content unreadable except for the owner, but if you know what is there e.g. a. executable like a script and you have the right to execute or modify, you can do so, but you have no ways to see what else is in that directory...
(just in case I was not clear, The GID of the files in this directory are set to GroupB)

Last edited by vbe; 01-17-2020 at 05:45 PM..

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LEARN ABOUT MOJAVE

mount_msdos

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

NAME

     mount_msdos -- mount an MS-DOS file system

SYNOPSIS

     mount_msdos [-o options] [-u uid] [-g gid] [-m mask] special node

DESCRIPTION

     The mount_msdos command attaches the MS-DOS filesystem residing on the device special to the global filesystem namespace at the location
     indicated by node.  This command is normally executed by mount(8) at boot time, but can be used by any user to mount an MS-DOS file system on
     any directory that they own (provided, of course, that they have appropriate access to the device that contains the file system).

     The options are as follows:

     -o options
	     Use the specified mount options, as described in mount(8).

     -u uid  Set the owner of the files in the file system to uid.  The default owner is the owner of the directory on which the file system is
	     being mounted.

     -g gid  Set the group of the files in the file system to gid.  The default group is the group of the directory on which the file system is
	     being mounted.

     -m mask
	     Specify the maximum file permissions for files in the file system.  (For example, a mask of 755 specifies that, by default, the owner
	     should have read, write, and execute permissions for files, but others should only have read and execute permissions.  See chmod(1)
	     for more information about octal file modes.)  Only the nine low-order bits of mask are used.  The default mask is taken from the
	     directory on which the file system is being mounted.

SEE ALSO

     mount(2), unmount(2), fstab(5), mount(8)

CAVEATS

     FreeBSD 2.1 and earlier versions could not handle cluster sizes larger than 16K.  Just mounting an MS-DOS file system could cause corruption
     to any mounted file system.  Cluster sizes larger than 16K are unavoidable for file system sizes larger than 1G, and also occur when filesys-
     tems larger than 1G are shrunk to smaller than 1G using FIPS.

HISTORY

     The mount_msdos utility first appeared in FreeBSD 2.0.  Its predecessor, the mount_pcfs utility appeared in FreeBSD 1.0, and was abandoned in
     favor of the more aptly-named mount_msdos.

BSD
								   April 7, 1994							       BSD