An easy way to force a standard owner and permissions is to use the smb.conf options create mask / create mode, directory mask / directory mode, force create mode, force directory mode, force user, and force group / group, which manage the ownership and permissions of files stored in a share independent from the connecting user. When multiple users access the same share, they might end up creating files they can not mutually access, due to the files’ different owners and permissions assigned to the owning user and group only. Thanks to ID mapping on the file server, each domain user has an equivalent in the Linux file server’s user database. When accessing a share, Samba uses the identity of the user connected to the share to perform operations on the Linux file system. The simplest form of these permissions are the classic file ownership and permissions, as managed by chown and chmod. Once a user passes this hurdle, the access to a specific file is subject to file system permissions.
First of all, Samba uses the read list and write list options in smb.conf to determine which users have which kind of access in general. These permissions are managed in multiple layers. Once a user is connected, access to the individual files requires further permissions. Remember the notation of users mapped from your domain as well as the ability to specify groups in these options. Try to configure a share to allow or reject connections from specific users and test that the users are connected or rejected as expected. The smb.conf options valid users and invalid users are the initial doorman deciding who can connect. Let’s first of all determine who can connect to the share at all. Within each file share, the path option specifies what part of the server’s file system is accessible through the share. The name of the share is the section name surrounded by square brackets. Usually, each share is a dedicated section in the smb.conf file. To get started, let’s review how shares are declared. This week’s posting is all about the file server’s share configuration. The lab also contains a file server as a domain member. In the previous posts we set up a virtual lab, installed Samba, and set up an Active Directory domain.
Smbconf review series#
This blog posting is the third in a series that will help you to prepare for the new version 3.0 of the LPIC-3 Mixed Environments exam. Passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully*. Panic action = /usr/share/samba/panic-action %d Name resolve order = bcast host lmhosts wins Server string = %h server (Samba, Ubuntu) The second is a shared folder (/home/user/Videos). The first (storage) is a shared hard drive. Note: there are two shared items at the bottom that you will want to omit or change to your use.
Smbconf review code#
Replace the contents of that file with the code below. Edit the smb.conf as follows (adjust this to suit your Linux environment and editor): sudo gedit /etc/samba/smb.conf Here’s a very simplified smb.conf for Samba which you can try if you are having problems with Samba in your home network.
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