HELP! Share directory permission problem

Afante · 02-22-2009, 09:13 AM

Hi,

I want to share a directory prj between two existent accounts A and M.
I did the following:

As root:
$ mkdir /home/prj
$ groupadd workgroup
$ chgrp workgroup /home/prj
$ usermod -G workgroup A
$ usermod -G workgroup M
$ usermod -G workgroup root
$ chmod 770 /home/prj

As either A or M:
$ ls /home/prj
ls: /home/prj: Permission denied

Can anyone tell me what is wrong? And how should I set directory permissions and ownerships so that prj can be accessed by A and M but not by all others?

zedmelon · 02-22-2009, 09:23 AM

Try making "workgroup" the primary or default group for each of those users.

Welcome to LQ!

tredegar · 02-22-2009, 09:28 AM

Please ls -al /home
And note this from man usermod

Code:

-G, --groups GROUP1[,GROUP2,...[,GROUPN]]]
           A list of supplementary groups which the user is also a member of.
           Each group is separated from the next by a comma, with no
           intervening whitespace. The groups are subject to the same
           restrictions as the group given with the -g option. If the user is
           currently a member of a group which is not listed, the user will be
           removed from the group. This behaviour can be changed via the -a
           option, which appends the user to the current supplementary group
           list.

So I think you might have messed up the groups for the users A M and root
What is the output of groups when run as user A?

jschiwal · 02-22-2009, 11:50 AM

You may need to log out as these users before testing. Also run "sudo /usr/sbin/grpck".

Afante · 02-23-2009, 01:55 AM

Quote:

Originally Posted by jschiwal

You may need to log out as these users before testing. Also run "sudo /usr/sbin/grpck".

That's the problem! Now I gain access to the shared directory.

Thank you everyone!

Tinkster · 02-23-2009, 10:14 AM

And in an interactive session you can avoid logging out
by just typing "newgrp <group_name>" (note: this is only
valid for the current shell).

Cheers,
Tink

Afante · 02-23-2009, 11:48 PM

Quote:

Originally Posted by Tinkster

And in an interactive session you can avoid logging out
by just typing "newgrp <group_name>" (note: this is only
valid for the current shell).

Cheers,
Tink

Thank you very much!