Now type:

$ 

chmod 6775 /foodbar

$ 

ls -al /foodbar/..

You should see:

drwsrwsr-x  2 jack  engr    48 2003-02-04 09:55 foodbar

Now type:

$ 

su - jill

$ 

cd /foodbar

$ 

touch Afile

$ 

ls -al

You should see that the file Afile created by Jill will have ownership and permissions of Jack, as follows:

-rw-r--r--  1 jack  engr     0 2003-02-04 09:57 Afile

Now in your smb.conf for the share add: