Assigning write permissions to a group

Question

I have setup Samba on Pi and I have added the users to the sambashare group in /etc/group. I want to assign read and write permissions to the users in this group so that they can create new files and modify it in using Samba client Is there any way to assign read write permissions to a group?

Answer 1

You have to define the scope of your question, because you can set permissions on any directory you choose.

You will have to set permissions on the directory in question correctly, but also ensure that you haven't marked your Samba share as read-only.

First, you want to set the read only directive to no in your Samba configuration. For example, say you have an upload share. Edit your Samba configuration to set read only to no in the share:

[upload]
    path = /path/to/directory
    comment = Upload directory
    read only = no

After you do this, you will want to grant write permission on the directory for the Samba share to the sambashare group. Using the upload share from above, you would need to set the permissions/ownership of the /path/to/directory directory:

~> chown :sambashare /path/to/directory
~> chmod g+w /path/to/directory

The chown line sets the group ownership of the directory (to the sambashare group), and the chmod line grants write permission to the owner group (now the sambashare group). I am assuming that you don't need to modify your permissions further on the directory.

Answer 2

Directory: /home/myuser/myshare
User: myuser
Group: sambashare

Try this:

• ADD myuser to the group

  sudo usermod -a -G sambashare myuser
  

• Change the ownership of the folder

  sudo chgrp mygroup /home/myuser/myshare
  

• Give read/write access

  sudo chmod 770 /home/myuser/myshare
  

Answer 3

Assuming the users exist on the Pi and are in the group sambashare, I would add:

validusers = @sambashare  #or name of the group to the share definition in smb.conf as in 

https://www.samba.org/samba/docs/using_samba/ch09.html