TrueNAS CORE / SCALE on Mexicali IT

TrueNAS: Enable Computer Management & OpenFiles Access (Access Denied Fix)

Tue, 10 Mar 2026 22:00:00 -0700

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When managing a TrueNAS or FreeNAS file server integrated with Microsoft Active Directory, you may encounter a You do not have permissions to see the list of files opened by Windows clients. or NT_STATUS_ACCESS_DENIED error when attempting to connect using native Windows RPC administrative tools.

This behavior is most prominent when:

Trying to open the fsmgmt.msc (Computer Management -> Shared Folders) MMC snap-in pointing to your NAS.

TrueNAS: How to Apply System Updates

Mon, 09 Mar 2026 15:00:00 -0700

Keeping your TrueNAS installation up-to-date is crucial for maintaining system stability, improving ZFS performance, and patching critical security vulnerabilities. Fortunately, TrueNAS features a highly robust, built-in updater that handles downloading patches, applying them to a new boot environment, and safely rebooting the system without putting your data at risk.

This short guide demonstrates how to check for and apply system updates to your TrueNAS server.

Step-by-Step Guide

1. Check for Updates

Log into your TrueNAS web interface as an administrator. Navigate to System > Update in the left-hand menu.

TrueNAS: How to Create an SMB Share Drive

Mon, 09 Mar 2026 14:00:00 -0700

The primary purpose of deploying TrueNAS is often to act as a highly resilient network file server. Server Message Block (SMB), also known as CIFS, is the standard file-sharing protocol natively used by Windows, but it is also widely supported by macOS and Linux systems. To share data across your network, you must first create an isolated filesystem container (a ZFS Dataset) and then expose that dataset via the SMB service.

TrueNAS: How to Join an Active Directory Domain

Mon, 09 Mar 2026 13:00:00 -0700

When deploying TrueNAS in an enterprise environment, integrating it with a central Windows Server Active Directory (AD) domain is essential. Joining the domain allows TrueNAS to directly query your domain controllers for users and groups, eliminating the need to recreate local accounts. You can then assign NTFS-style permissions (ACLs) to your SMB shares seamlessly.

This guide details the procedure for joining your TrueNAS storage server into an Active Directory domain.

TrueNAS: How to Import and Apply SSL Certificates

Mon, 09 Mar 2026 12:00:00 -0700

Securing your TrueNAS web interface with a valid SSL/TLS certificate is a critical step in deploying a production-ready storage server, especially when integrating it with enterprise Active Directory environments or managing it over a network. By default, TrueNAS generates a self-signed certificate, which modern browsers flag as insecure.

This guide details the process of importing an existing SSL certificate (and its private key)â€”often issued by an internal Windows Certificate Authority or a provider like Let’s Encryptâ€”and applying it to the TrueNAS graphical interface.

TrueNAS: How to Create a New ZFS Storage Pool

Mon, 09 Mar 2026 11:00:00 -0700

The core of any TrueNAS deployment is its storage configuration. At the heart of this system is the ZFS file system, which organizes physical disks into logical groupings called vdevs (Virtual Devices) and aggregates them into a Pool. Creating a robust storage pool is your first step toward configuring data shares, taking snapshots, and securing your enterprise or homelab data.

This guide will walk you through the process of creating a new ZFS Storage Pool in TrueNAS.

TrueNAS: How to Install and Configure the Ultimate ZFS Storage OS

Mon, 09 Mar 2026 10:00:00 -0700

Introduction: What is TrueNAS?

TrueNAS is universally recognized as the world’s most robust Open Storage operating system, directly heavily relying on the legendary ZFS (Zettabyte File System) architecture. It delivers absolute enterprise-grade features straight out of the box: proactive data self-healing, intelligent RAM tier caching (ARC), and unlimited instantaneous snapshots.

Whether deploying the FreeBSD-based CORE or the modern Debian Linux-based SCALE, TrueNAS effectively transforms commodity servers into high-performance, resilient storage arrays meticulously built to serve virtualization clusters, heavy backup targets, and enterprise media streams.