![]() ![]() Invalid users = root bin daemon adm sync shutdown halt mail news uucp operator We block their access in the define like so: You’ll want to ensure particular users cannot access any Samba share on your server those users are root, bin, daemon, adm, sync, shutdown, halt, mail, news, uucp, or operator. GROUPNAME is the name of the group, and USERNAME is the name of the user to be added. With groups, you have to ensure that all members have been added to the group with a command like this: The crucial bit is the character, which tells Samba that editorial is a group and not a user. What if, however, you have a group called editorial, and you want to share the directory /data/editorial to that group? A share for that group would look like this: Valid users = Olivia, Nathan, Bethany, Jamal You can set multiple users for this, like so: The valid users option informs Samba what users to limit the share to, and the force user option ensures all files are written as that user only. You would have to make sure that (in this case) the user Olivia has permission to access the /data/olivia folder. Within the smb.conf configuration file, that share might look like: Say you have a folder on a server that needs to be seen only by Olivia. ![]() When you create a Samba share, you can do so for individual users or groups–this is a great way to lock down a particular share to a specific user or a group. SEE: Interview with a hacker: S1ege from Ghost Squad Hackers Security by user or group Once you put these into play (as/if needed), your Samba server will enjoy a new level of security. I’ll walk you through some security best practices with regards to users and Samba. So, where do you begin? How do you lock down your Samba shares? It all begins with users. How to secure your email via encryption, password management and more (TechRepublic Premium) Meet the most comprehensive portable cybersecurity device After all, you open up a Samba share without a nod to user security, and you run the risk of users gaining access to data they shouldn’t. If that’s the case, you’ve probably also seriously considered user security. If you have any intention of allowing Linux, Mac, and Windows seamlessly communicate with one another, chances are you’ve considered this open source service. Samba is a critical component to mixed-platform networks. When securing your Samba shares, start by locking down user and group security. ![]()
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