I have set up an environment for file sharing with Linux as server and Samba as a PDC for winXP Client Workstations on it. I have shared a folder called CT for edt group to access and store and write or modify files in that. Earlier the same folder was in Windows 2K3 server and I copied all files to linux samba share (CT) and change the group to edt using the command chgrp, also changed the permission to write and read for both owner and group. All are going fine except the problem of permission, whenever the group member add files or folders under the folder CT, the folder can only be writable for owner and groups and others are only having read access. Everytime after adding a file or folder by the edt group member, I have to change the permission to 770 manually. In a live environment I'm not able to proceed with kind of follow ups, I want to set 770 as permission for CT folder permanently.

First chmod 770 /your/share/folder

then in smb.conf do something like:

[Public]
comment = Public Directory
path = /home/public
valid users = @public-group
force group = public-group
read only = No
create mask = 0770
force create mode = 0770
directory mask = 0770
force directory mode = 0770


The result is when a user creates a file in the Public share the user:group is useraccountublic-group and the permissions are -rwxrwx---