TrueNAS provides the option to configure network interfaces using either IPv4 or IPv6 addresses. IPv4 networks cannot see or communicate with an IPv6 website or network unless a gateway or some other implementation is configured to allow it. See Understanding IPv6 for more information.

After configuring your network infrastructure for IPv6, assign the IP addresses for your TrueNAS system. Use the TrueNAS UI to configure your network settings. If setting TrueNAS up for the first time after a clean install, use the Console Setup menu to enter IPv6 addresses.

The Services > NFS configuration screen displays settings to customize the TrueNAS NFS service.

Go to System > Services screen, locate NFS and click edit to open the screen, or use the Config Service option on the Unix (NFS) Share widget options menu found on the main Sharing screen.

Select Start Automatically to activate the NFS service when TrueNAS boots.

We recommend using the default NFS settings unless you require specific settings.

The System > Services screen includes two icons on the NFS service row:

• NFS Sessions opens the NFS Sessions screen.
• Configure opens the NFS Service screen.

The UDP protocol is deprecated and not supported with NFS. It is disabled by default in the Linux kernel. Using UDP over NFS on modern networks (1Gb+) can lead to data corruption caused by fragmentation during high loads.

Creating a Network File System (NFS) share on TrueNAS makes a lot of data available for anyone with share access. Depending on the share configuration, it can restrict users to read or write privileges.

The Sharing screen opens after you click Shares on the main navigation panel.

The Unix (NFS) Share launch widget includes the widget toolbar that displays the status of the NFS service and the Add button. After adding NFS shares, the widget displays a list of the shares below the toolbar.

Users of TrueNAS 24.04 (Dragonfish) or newer can migrate data from a third-party NAS solution onto TrueNAS using the Syncthing Enterprise application. The Syncthing Enterprise application can mount remote SMB shares in a manner that preserves relevant metadata. TrueNAS 24.10 (Electric Eel) also adds migration support for SMB alternate data streams (ADS), used to store application-specific metadata.

TrueNAS Enterprise

Third-party data ingest is available to TrueNAS Enterprise customers with TrueNAS 24.04 (Dragonfish) and newer deployed, as well as the appropriate applications license. TrueNAS Enterprise Support staff are available to assist with deploying the Syncthing Enterprise Application and migrating data. Please contact TrueNAS Enterprise Support to learn more and schedule a time to deploy the app and begin migration.