TrueNAS SCALE brings full Access Control List (ACL) compatibility between Windows and Linux with NFSv4 ACLs on ZFS and eases the challenges of integrating Unix servers in Windows environments.
ACL Overview In TrueNAS, ACLs specify which users or system processes (trustees) have access to datasets or shares. ACLs also determine what operations trustees can perform.
Each entry in an ACL specifies a trustee and an operation. For example, if an SMB share has an ACL that contains:
TrueNAS SCALE offers two Access Control List (ACL) types: POSIX (the SCALE default) and NFSv4. For a more in-depth explanation of ACLs and configurations in TrueNAS SCALE, see our ACL Primer.
The Dataset Preset option on the Add Dataset screen sets the ACL type applied for SMB shares, apps, multi-protocol shares, and general-use datasets.
The ACL Type setting in the Advanced Options on both the Add Dataset and Edit Dataset screens, determines the ACL presets available on the ACL Select a preset ACL window.
TrueNAS SCALE provides basic permissions settings and an access control list (ACL) editor to define dataset permissions. ACL permissions control the actions users can perform on dataset contents and shares.
An Access Control List (ACL) is a set of account permissions associated with a dataset that applies to directories or files within that dataset. TrueNAS uses ACLs to manage user interactions with shared datasets and creates them when users add a dataset to a pool.
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