How do I disable Samba anonymous login?

How do I disable Samba anonymous login?

Disable Guest Access – Samba

  1. Edit the smb.conf file: $ sudo nano /etc/samba/smb.conf.
  2. Add this line to the [global] section: restrict anonymous = 2.
  3. Close and save the file. Then restart samba. This will restart samba on Ubuntu: sudo service smbd restart.
  4. or on Centos: # /etc/init.d/smb restart.
  5. Done!

What is SMB conf?

The smb. conf file is a configuration file for the Samba suite. smb. conf contains runtime configuration information for the Samba programs.

Why is the Guest account disabled by default?

Guest logons do not support standard security features such as signing and encryption. So, guest logons are vulnerable to man-in-the-middle attacks that can expose sensitive data on the network. Windows disables insecure (nonsecure) guest logons by default.

How safe is Samba?

Samba itself is secure in the fact that it encrypts passwords (can be set to use cleartext but that would be bad) but by default data is not encrypted. Samba can be compiled with SSL support, but you then have to find a client that supports SMB over SSL because Windows itself doesn’t.

What is System-Config-Samba?

System-config-samba is a graphical user interface for creating, modifying, and deleting samba shares and users.

How to set up public shares in samba?

The name of the share will be “public”: This sets up a share named “public” which is shown when browsing the server to any user with rights to do so. You can see it is public, but not writable except for “dawuss” (which is me) and that it is ok for guests to login. Next, we need to set up the guest access itself. In the global section:

What does it mean to browse the network with samba?

To most people, browsing means they can see the MS Windows and Samba servers in the Network Neighborhood, and when the computer icon for a particular server is clicked, it opens up and shows the shares and printers available on the target server.

What happens if Samba can’t find username?

If it can’t find the username, it falls back to an anonymous user and grants access anyway (if this is policy). This is where Samba differs. If set to security=user (which is a good idea anyway), when a user requests access to a share, it too looks up the credentials in a backend.

What to do when NetBIOS is disabled in samba?

Samba-3 and later versions also support this mode of operation. When the use of NetBIOS over TCP/IP has been disabled, the primary means for resolution of MS Windows machine names is via DNS and Active Directory. The following information assumes that your site is running NetBIOS over TCP/IP.