Synology Directory Server

Synology Directory Server

Turn your Synology NAS into a domain controller (DC) to manage users, devices, groups, and domain policies in a breeze.


Seamless authentication

Authenticate users and Synology, Windows, Mac, and Linux platforms.


Bulk management

Deploy updates and policies to multiple users and endpoints at once.


Continuous service

Retain service availability using flexible methods.

Configure domain objects the way you want

Set user permissions

Add, import, or edit accounts with login hours, usable devices, password policies, and more. Modify a user's personal information, home directory paths, and group memberships. Upload login scripts for installing updates, or map network drives.


Modify group privileges

Change groups to distribution groups for email lists or security groups to assign permissions to shared resources, and set a group's scope as domain local, global, or universal.


Standardizing Windows deployments

Apply Windows Active Directory (AD) group policies to multiple users at once by installing and configuring RSATs (Remote Server Administration Tools) from a separate Windows PC.


Manage users and devices

Monitor users, create personalized experiences, and improve device security.

Create a safer environment

Deploy security updates and software to users or devices, or apply password and account lockout policies to profiles for tightened security.

Bring consistency to user experiences

Enable Roaming User Profiles (RUPs), and allow users sign in to any Windows workstation and have their application settings restored in full. Learn more

Monitor changes in real time

View events and changes made to domain objects from the Log view.

Maximize service availability

Add a second DC for near-instant failover, deploy Synology High Availability (SHA) for minute-level failover, or back up your server with Hyper Backup.

Add a second DC for active-active

Connect to another Synology Directory Server to create an active-active DC with near-instant failover capabilities.

Minute-level failover with SHA

Combine two identical Synology NAS for active-passive clustering and automatic minute-level failover. Learn more

Back up your server easily

Schedule backups of your Synology Directory Server with Hyper Backup for easy retrieval if disaster strikes. Learn more


Simplify workflows with single sign-on (SSO)

Provide convenience to domain users with SSO capabilities for Synology Office, Chat, MailPlus, Calendar, and Note Station, for both local and remote access. Learn more







Note Station

Note Station





Learn more about Synology account management

Administrator's Guide for Synology Directory Server

Learn everything you need to use Synology Directory Server as an administrator.

User management

Discover how to flexibly manage users on Synology NAS.

C2 IdentityC2 Identity

C2 Identity

Bring your directory server to the cloud with C2 Identity.