Enabling Two-Factor Authentication on Synology NAS

Cybersecurity and Threat Intelligence

Passwords alone are no longer enough to protect your data. With increasing cyber threats and brute-force attacks, adding an extra layer of security is essential. Enabling two-factor authentication (2FA) on a Synology NAS significantly reduces the risk of unauthorized access.

This guide walks you through the setup process and best practices.

What Is Two-Factor Authentication?

Two-factor authentication adds a second verification step during login.

How It Works

You enter your password
You provide a second factor (usually a code from a mobile app)

Even if your password is compromised, attackers cannot access your system without the second factor.

Why 2FA Is Important for NAS Security

NAS devices often store sensitive data and are accessible over the network or internet.

Key Benefits

Protects against stolen credentials
Prevents brute-force attacks
Adds an extra layer of account security

2FA is one of the most effective ways to secure your NAS.

Enforcing 2FA with Centralized User Management

For organizations using directory services, enabling 2FA at scale becomes much more efficient. By integrating your NAS with centralized systems like Active Directory or LDAP, administrators can enforce two-factor authentication policies across all users consistently. This ensures that every account, especially those with elevated privileges, follows the same security standards. Centralized management also simplifies onboarding and offboarding, automatically applying or removing 2FA requirements as user roles change, which strengthens overall security while reducing administrative overhead.

Requirements Before Enabling 2FA

Before setup, ensure:

DSM is updated to the latest version
You have access to a smartphone or authentication app
Your account has administrative privileges

Step-by-Step: Enable 2FA on Synology NAS

Step 1: Log in to DSM

Open your NAS web interface
Sign in with your admin account

Step 2: Open Security Settings

Go to Control Panel
Click Security
Navigate to the Account tab

Step 3: Enable 2FA

Click Enable 2-step verification
Follow the setup wizard

Step 4: Scan QR Code

Use an authentication app (e.g., Google Authenticator)
Scan the QR code displayed

Step 5: Enter Verification Code

Enter the code generated by your app
Confirm setup

Step 6: Save Backup Codes

Store recovery codes securely
Use them if you lose access to your device

Choosing an Authentication Method

Synology supports multiple options:

Authenticator apps (recommended)
Email-based verification (less secure)

Authenticator apps provide stronger protection.

Best Practices for 2FA Security

Use Strong Passwords

2FA complements, not replaces, strong passwords.

Enable 2FA for All Users

Apply 2FA to all accounts, especially administrators.

Secure Backup Codes

Store them offline in a safe location.

Combine with Account Protection

Enable login protection to block suspicious attempts.

Common Issues and Fixes

Lost Access to Authenticator App

Use backup codes
Reset 2FA via admin account

Incorrect Codes

Sync device time
Reconfigure the app if needed

Login Problems

Clear browser cache
Try a different device

2FA as Part of a Broader Security Strategy

While 2FA is a critical security measure, it should be part of a larger protection strategy. Combining 2FA with firewall rules, secure remote access, and regular system updates creates a layered defense that significantly reduces the risk of unauthorized access and data breaches.

How Epis Technology Strengthens NAS Security

Epis Technology helps businesses implement advanced security measures on Synology NAS systems, including 2FA, access control, and network protection. By combining best practices with expert configuration, Epis Technology ensures strong and reliable security.

The company provides services including large storage solutions, Microsoft 365 and Google Workspace backups, fully managed PC backups, and Synology consulting and support. Epis Technology also assists with security audits, monitoring, and system optimization.

About Epis Technology

Epis Technology provides enterprise IT infrastructure, Synology consulting, and data protection solutions for organizations of all sizes. The company specializes in secure NAS deployments, backup systems, and IT optimization. Through expert design, implementation, and ongoing support, Epis Technology helps businesses maintain secure, scalable, and high-performance environments.