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This content follows the TrueNAS SCALE 23.10 (Cobia) releases. Use the Product and Version selectors above to view content specific to different TrueNAS software or major version.
SMB
3 minute read.
Last Modified 2024-03-19 08:38 EDTThe Services > SMB screen displays after going to the Shares screen, finding the Windows (SMB) Shares section, and clicking + Config Service. Alternatively, you can go to System Settings > Services and click the edit icon for the SMB service.
The SMB Services screen displays setting options to configure TrueNAS SMB settings to fit your use case. In most cases, you can set the required fields and accept the rest of the setting defaults. If you have specific needs for your use case, click Advanced Options to display more settings.
Enter the name of the TrueNAS host system if not the default displayed in NetBIOS Name. This name is limited to 15 characters and cannot be the Workgroup name.
Enter any alias name or names that do not exceed 15 characters in the NetBIOS Alias field. Separate each alias name with a space between them.
Enter a name that matches the Windows workgroup name in Workgroup. TrueNAS detects and sets the correct workgroup from these services when unconfigured with enabled Active Directory or LDAP active.
When using SMB1 clients, select Enable SMB1 support to allow legacy SMB1 clients to connect to the server.
As of SCALE 22.12 (Bluefin) and later, TrueNAS does not support SMB client operating systems that are labeled by their vendor as End of Life or End of Support. This means MS-DOS (including Windows 98) clients, among others, cannot connect to TrueNAS SCALE SMB servers.
The upstream Samba project that TrueNAS uses for SMB features notes in the 4.11 release that the SMB1 protocol is deprecated and warns portions of the protocol might be further removed in future releases. Administrators should work to phase out any clients using the SMB1 protocol from their environments.
If you plan to use the insecure and vulnerable NTLMv1 encryption, select NTLMv1 Auth to allow smbd attempts to authenticate users. This setting enables backward compatibility with older versions of Windows, but we don’t recommend it. Do not use on untrusted networks.
Enter any notes about the service configuration in Description
For more advanced settings, see SMB Services Screen.
Use Auxiliary Parameters to enter additional smb.conf options, or to log more details when a client attempts to authenticate to the share, add log level = 1, auth_audit:5. Refer to the Samba Guide for more information on these settings.
Click Save.
Start the SMB service.