The Services > SMB screen displays after going to the Shares screen, finding the Windows (SMB) Shares section, and clicking more_vert + Config Service. Alternatively, you can go to System > Services and click the edit 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.

The System > Services screen includes three options on the SMB service row:

• View Logs opens the Audit screen.
• View Sessions opens the SMB Status screen.
• edit Configure icon opens the SMB Service screen showing the Basic Settings by default.

The SMB service screen displays setting options to configure TrueNAS SMB service settings to fit your use case.

There are normalize forms for a unicode character with diacritical marks: decomposed (NFD) and pre-composed (NFC).

Take for example the character ä (a + umlaut) and the encoding differences between NFC (b’\xc3\xa4’) and NFD (b’a\xcc\x88’).

The MacOS SMB client historically and at present forces normalization of unicode strings to NFC prior to generating network traffic to the remote SMB server.

The practical impact of this is that a file that contains NFD diacritics on a remote SMB server (TrueNAS, Windows, etc.) might be visible in the directory listing in the MacOS SMB client and thereby Finder, but any operations on the file (edits, deletions, etc.) have undefined behaviors since a file with NFC diacritics does not exist on the remote server.

SMB (also known as CIFS) is the native file-sharing system in Windows. SMB shares can connect to most operating systems, including Windows, Mac OS, and Linux. TrueNAS can use SMB to share files among single or multiple users or devices.

SMB multichannel allows servers to use multiple network connections simultaneously by combining the bandwidth of several network interface cards (NICs) for better performance.

TrueNAS auditing and logs provide a trail of all actions performed by a session, user, or service (SMB, middleware).

The audit function backends are the syslog and Samba debug libraries. Syslog sends audit messages via an explicit syslog call with configurable priority (WARNING is the default) and facility (for example, USER). The default is syslog-sent audit messages. Debug sends audit messages from the Samba debug library. Messages have a configurable severity (WARNING, NOTICE, or INFO).

TrueNAS auditing logs record all operations performed by a session, user, or service (SMB, middleware).

The Audit screen lists all session or user events, facilitating comprehensive monitoring.