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Best VPN for Synology NAS

Synology is known for offering secure network-attached storage (NAS) to users. However, your data is vulnerable to interception and hacking while file transfer, raising the need for VPNs. We have tested 55+ VPNs on Synology devices and have shortlisted the 5 best VPNs, with ExpressVPN as our top choice.

Synology is a company that manufactures Network Attached Storage (NAS) devices. As the name implies, NAS devices provide centralized data storage. Whether you are using Synology for business or personal use, these devices are mainly used to store sensitive information.

Although Synology NAS devices are highly protected, the major concern arises when you are transferring files. Anyone can intercept your data during transmission while you are using Synology on an unsecured network.

That is why you need the best VPN to encrypt your online traffic and make sure your files are safe from all kinds of third-party interventions.

However, not all VPNs are a perfect fit for Synology. Therefore, we have tested 55+ providers and have shortlisted the 5 best VPN for Synology. All our recommendations support OpenVPN UDP/ TCP, and you can read further down the guide on how to set up a VPN on Synology.

Which VPN is Best for Synology in 2022? – Quick Overview

Short on time? Here is a quick overview of the 5 best VPNs for Synology in 2022:

  1. ExpressVPN – The Best VPN for Synology with great encryption. Comes with 256-bit encryption, perfect forward secrecy, and TrustedServer technology with very fast and secure servers for just $6.67/mo (Save 49% and get 3 extra months FREE with 12-month plan).
  2. Surfshark – Budget-friendly VPN for Synology. Comes with advanced security features like MultiHop, CleanWeb, Whitelister, and more, costing $2.49/mo (Save 81% on 2 Years Plan).
  3. NordVPN – Largest server network VPN for Synology. Offers 5500+ servers in 59 countries, with obfuscation, and double VPN for $3.99/mo (Save 70% on 2 Years Plan + Extra Subscription).
  4. CyberGhost – User-friendly VPN for Synology. Comes with easy-to-use apps with DNS leak protection, split tunneling, and AES 256-bit for $2.29/mo .
  5. PIA – Reliable VPN for Synology. Comes with customizable security features like split tunneling, kill switch, DNS leak protection, and more for $2.19/mo

Why Should You Use a VPN for Synology?

For both business and personal users, Synology has been a breakthrough when it comes to secure file sharing and storage. However, during file transfer, your data is subject to hacking and interception. Therefore, you need a VPN to protect Synology.

Although Synology offers protection, the danger lies while you are transferring files, especially on unsecured networks. Hackers can easily use packet sniffers to intercept data while transferring and get access to all your important documents.

Installing a VPN on your Synology NAS device will encrypt all incoming and outgoing traffic through a VPN tunnel using AES 256-bit encryption that is nearly unhackable. This means that third parties cannot intercept your data, and even if they do succeed, due to encryption, they will not be able to access it.

Moreover, a VPN reroutes your traffic through its private servers, which means that hackers will not be able to see your true IP address. This way, you are protected against targeted cyberattacks.

What are the Top 5 Best VPNs for Synology in 2022 [Full Analysis]

With the growing number of cyber threats, Synology devices need a VPN to guarantee maximum protection and encryption of your data. Therefore, to help you select the best provider, we have tested 55+ VPN services on the basis of security, speed, and servers to shortlist the 5 best VPNs for Synology NAS in 2022.

1. ExpressVPN – The Best VPN for Synology with Great Encryption


🌍 3000+ servers in 94 countries
🔐 AES 256-bit encryption, Zero-knowledge DNS
🖥️ 5 simultaneous connections
✔️ 4096 bit RSA key, Perfect Forward Secrecy, TrustedServer Technology

ExpressVPN is the best VPN for Synology because of its fast-speed servers and world-class security features that are currently the best in the industry right now. Fast speed and great encryption are the best combo for Synology users.

ExpressVPN offers 3000+ servers in 94 countries. All its servers offer lightning-fast speeds that make downloading and uploading large files to Synology easy.

During testing, it took us less than 1 minute to establish a connection to the ExpressVPN Singapore server, and there was no lag. On our base connection of 100 Mbps, we could enjoy a fast speed of 95.39 Mbps – as there was less than a 10% speed drop – thus making it one of the fastest Synology NAS VPN.


ExpressVPN speed results on a 100 Mbps connection.

If we speak about data security and privacy, it’s safe to say that ExpressVPN is the most secure VPN in 2022. All your data is protected while NAS file transfers with AES 256-bit encryptionExpressVPN’s kill switch ensures your IP address remains hidden in case of any disconnection.

What we loved about ExpressVPN is that it used the most advanced SHA512 hashing with a 4096-bit RSA key, while in comparison, most popular websites and banks only use 2048-bit RSA keys.

That’s not all, ExpressVPN also uses perfect forward secrecy (PFS) that protect encrypted traffic from attacks by regularly changing keys. Every time you connect to ExpressVPN’s server, a unique encryption key is generated through Elliptical-Curve Diffie Hellman (ECDH) key exchange – so no third party can decrypt your data.

For Synology users, there are plenty of VPN protocol options to choose from. There is OpenVPN UDP and OpenVPN TCP for configuration, along with ExpressVPN’s proprietary Lightway protocol.

expressvpn-protocols-synology vpn server setup

For Synology, you use ExpressVPN OpenVPN UDC or TCP protocols.

ExpressVPN is based in the safe jurisdiction of the British Virgin Islands, so there is nothing to worry about regarding privacy and data logging. Furthermore, it uses TrustedServer technology, due to which all data is wiped from servers with every reboot – hence no data to log.

Overall, we recommend using ExpressVPN on Synology for personal and business use because of its spotless reputation and great privacy features.

You can get ExpressVPN today for $6.67/mo (Save 49% and get 3 extra months FREE with 12-month plan). It also offers a risk-free 30-day money-back guarantee to users for testing the service.

You can check out our comprehensive ExpressVPN review for more information about this provider.

What We Like
  • Military-grade encryption
  • TrustedServer Technology
  • Spotless reputation
  • 24/7 live chat support
  • Servers in 94 countries
What We Don't Like
  • No SOCKS5 proxy
  • Slightly expensive
Best Deal Available
49% OFF
12 Months + 3 Months Free
Get ExpressVPN for Synology30 Days Money Back Guarantee

2. SurfsharkBudget-friendly VPN for Synology 


🌍 3200+ servers in 95 countries
🔐 AES 256-bit encryption, DNS leak protection
🖥️ Unlimited simultaneous connections
✔️ CleanWeb, Camouflage Mode, MultiHop, WhiteLister

Surfshark is a great budget-friendly VPN for Synology available for just $2.49/mo (Save 81% on 2 Years Plan). This affordable VPN is a great choice for users who are on tight budget.

However, don’t let its price tag fool you, as Surfshark gives tough competition to its rivals with a handful of advanced features. To start with, you get 3200+ servers worldwide across 95 countries. There are plenty of physical and virtual servers located in multiple countries.

The performance of each server is considerably good and delivers blazing-fast consistent speeds. While testing, Surfshark speed was great on the servers we tested, with around a 20% speed drop only. We got an average download speed of 81 Mbps on our base connection of 100 Mbps.


Surfshark speed test result on a 100 Mbps connection.

Surfshark is an ideal choice to protect your data on Synology. It offers AES-256-GCM encryption that allows file transfers in total security. It also blocks all kinds of phishing sites, ads, and malware attempts through its CleanWeb feature.

Surfshark also offers a Camouflage mode that hides the fact that you’re using a VPN from your ISP. It masks your VPN traffic, making it look like normal HTTPS traffic so you can easily bypass online restrictions.

Its DNS leak protection feature is also super-effective as it never leaked our real IP address during testing. With Surfshark’s kill switch, you don’t need to hesitate while transferring files on Synology because it will immediately disconnect your device from your Wi-Fi connection in case of a sudden VPN connection drop.

With Surfshark, you will be able to set up OpenVPN TCP or UDP encryption on your Synology device. It also has various other protocols, including the latest WireGuard and its proprietary Shadowsocks protocol.


With Surfshark, you have the option to use OpenVPN UDP/ TCP with Synology.

Surfshark is based in the British Virgin Islands, just like ExpressVPN, which is a safe jurisdiction for privacy as there are no mandatory data retention laws. Its servers have been audited by Cure53, so you can trust its no-logs policy.

Along with its affordable price, Surfshark supports unlimited simultaneous connections and offers a risk-free 30-day refund policy, so you can try out Surfshark on Synology for a month.

You can find more information about this service in our Surfshark review.

What We Like
  • Unlimited simultaneous connections
  • Ad-blocker, Split tunneling
  • Based in British Virgin Islands
  • 24/7 live chat support
  • 30-day refund guarantee
What We Don't Like
  • No free version
  • Logging policy is not audited
Best Deal Available
Get 82% OFF
on 2 Year Plan + Free Surfshark Antivirus
Get Surfshark For Synology30 Days Money Back Guarantee

3. NordVPN – Largest Server Network for Synology


🌍 5500+ servers in 59 countries
🔐 AES 256-bit encryption, DNS leak protection
🖥️ 6 simultaneous connections
✔️ Double VPN, Obfuscated Servers, Split Tunneling

NordVPN has the largest server network for NAS Synology users with a strong reputation in the VPN industry. It has a gigantic network of 5500+ servers that are distributed in 59 countries.

NordVPN’s servers are divided into the following categories:

  • Double VPN servers for maximum security and anonymity.
  • Dedicated IP servers for users who want a unique IP address.
  • P2P servers for P2P file sharing and torrenting.
  • Obfuscated servers for heavily censored regions.
  • Standard VPN servers for normal VPN use.

Owing to its large network of servers, we expected fast speed, and NordVPN did not disappoint. During testing, we got a fast download speed of 83.82 Mbps on a 100 Mbps base connection. There was less than a 20% speed drop which was great for transferring large files without any disruptions.


Apart from an impressive server network, NordVPN is famous for its state-of-the-art encryption and double VPN for users who want maximum data security and privacy. NordVPN uses AES-256-CBC with a 2048-bit DH key encryption that keeps all your NAS files protected during transfers.

Another thing that we liked about NordVPN is that, like ExpressVPN, it also uses Perfect Forward Secrecy (PFS), generating unique session keys for fool-proof encryption.

We also tested its encryption using Wireshark. After connecting to NordVPN, we ran packet tracing, and it showed us the transmitted data as gibberish – we could not get any information on the transferred data.


NordVPN makes sure that your data is encrypted even if intercepted by a third party.

If you are a fan of Tor, NordVPN also offers Onion Over VPN feature for multiple layers of security and privacy while surfing the dark web. Furthermore, it is based in Panama – a country with no mandatory data-logging laws, and NordVPN’s privacy policy is audited by VerSprite.

For these reasons, NordVPN on Synology is a great combo for businesses and personal users who are looking to keep their Synology devices safe and secure. It offers OpenVPN protocol for easy configuration on Synology.

NordVPN is available at a price of $3.99/mo (Save 70% on 2 Years Plan + Extra Subscription) and also comes with a 30-day money-back guarantee in case you want to give it a try risk-free.

To find out more about this service, read our detailed NordVPN review.

What We Like
  • Specialty servers
  • Built-in adblocker
  • Automatic kill switch
  • Independently audited logging policy
  • Obfuscated servers
What We Don't Like
  • Some servers take time to establish connection
Best Deal Available
Get 70% OFF
on 2 Year Plan + Extra Subscription
Get NordVPN For Synology30 Days Money Back Guarantee

4. CyberGhost – User-friendly VPN for Synology 


🌍 8900+ servers in 91 countries
🔐 AES 256-bit encryption, DNS/ IP leak protection
🖥️ 7 simultaneous connections
✔️ Automatic Wi-Fi protection, SHA256 authentication, perfect forward secrecy

CyberGhost is a user-friendly VPN for Synology. It has a simple and intuitive user interface so anyone can use it without any hassle. It offers OpenVPN TCP and UDP which can be used on Synology to protect your data while file transfer.

CyberGhost operates a huge network of 8900+ servers that are geographically dispersed across 91 countries. CyberGhost servers are categorized into:

  • Streaming servers 
  • P2P servers
  • Gaming servers
  • NoSpy servers
  • Dedicated IP servers

If you want extra security, you can connect to NoSpy servers that are based in CyberGhost’s private data centers in Romania – free from any third-party interference.

CyberGhost’s servers are not as fast as ExpressVPN, but they offer decent speed so you can transfer files without any lag or delay. On a base connection of 100 Mbps, we got an average download speed of 75.47 Mbps.


CyberGhost offers reliable speed for transferring large files on Synology.

If we talk about security, and privacy, don’t take CyberGhost lightly because the provider comes packing with competitive features. It uses 256-bit AES encryption for data security in combination with 4096-bit RSA key and SHA256 authentication.

It further comes with an effective kill switch that will keep your activities completely safe if the VPN connection drops at any time. Furthermore, you get Perfect Forward Secrecy, DNS leak protection, and split tunneling.

We decided to test its split tunneling feature and made website an exception. On its UK – London server, the website still showed our actual location and IP address in Spain, meaning the feature was working perfectly fine.


CyberGhost’s split tunneling feature is great for users who often multi-task.

CyberGhost is based in the safe jurisdiction of Romania – a privacy-friendly location that is not part of the 14 Eyes alliance. It follows a strict no-logs policy that you can trust. CyberGhost was audited by QSCERT, and no security issues were detected.

If you go with CyberGhost, you can get this VPN for just $2.29/mo , and it also offers a 45-day refund policy.

Read our full CyberGhost review to find out more about this service.

What We Like
  • Beginner-friendly apps
  • Optimized servers for streaming, gaming, torrenting
  • Dedicated IPs
  • Based in Romania (safe)
  • Military-grade encryption
What We Don't Like
  • Some servers offer slow speeds
Best Deal Available
Save 83% on
3 Year Plan + 4 Extra Months Subscription
Get CyberGhost For Synology45 Days Money Back Guarantee

5. PIA – Reliable VPN for Synology


🌍 35000+ servers in 80 countries
🔐 AES 256-bit encryption, Port Forwarding
🖥️ 10 simultaneous connections
✔️ SOCKS5 proxy, RSA-2048 public-key, Encrypted Wi-Fi

PIA is a reliable VPN service for Synology with superb OpenVPN encryption for Synology NAS devices with an easy setup. The VPN comes with an extensive server network of 35000+ servers across 80 countries. 

All its servers are P2P friendly, and it also features a SOCKS5 proxy, making PIA a good torrenting VPN. With thousands of servers, you can easily connect to a server near to your location and enjoy fast speeds as your data will not have to travel far.

While testing, PIA VPN offered us good speed on its short-distance servers, as we could download a 500 MB file within 9 minutes. We recorded a download speed of 65 Mbps and experienced a speed drop of around 40%.


PIA offered decent speed on short-distance servers.

Along with a massive server network, PIA VPN also offers a variety of advanced security features. Private Internet Access allows you to choose between 128-bit and 256-bit AES encryption according to your liking. Furthermore, it is equipped with SHA-1 or SHA-256 encryption with RSA-2048 public-key encryption for authentication.

There is also an effective kill switch that will protect your file transfers in case of a drop in the VPN connection. SOCKS5 proxy adds an additional layer of authentication for data protection.

PIA also comes with port forwarding and a handshake naming system (HNS) that allows you to change the selected Name Server from PIA’s DNS to use one of PIA’s HNS servers.

openvpn- private internet access synology

PIA offers customizable apps with multiple encryption protocols and features to choose from.

The VPN also comes with multiple encryption protocols. It offers OpenVPN, IKEv2, PPTP, and more to users at all times. It also offers a DNS leak feature and ensures no DNS leaks when you are connected to the VPN.

A slight con of PIA is that it is based in the US, which is not a great location for privacy, considering the data retention laws in the US. However, PIA ensures a strict no-logs policy that has been tested. In the past, the VPN was called to court to provide data on its users but had none to share.

If you do decide to go with this VPN, PIA VPN is available for $2.19/mo along with a 30-day money-back guarantee on all its plans.

Learn about the key features of this provider more in our in-depth PIA review.

What We Like
  • SOCKS5 proxy and port forwarding
  • Choice of encryption protocol
  • A wide network of servers
  • 10 simultaneous connections
What We Don't Like
  • The best offer is available on its long-term plan (3 Years)
  • Based in the US
Best Deal Available
Save 82% on
3 Year Plan + 3 Extra Months Subscription
Get PIA For Synology30 Days Money Back Guarantee

How Do I Know Which VPN to Choose for Synology?

Not all VPNs are compatible with Synology, therefore we have recommended the 5 best VPN for Synology out there after rigorously testing 55+ VPN services on wide criteria.

In addition to Synology compatibility, here is a list of important factors on which each VPN was tested:

  • Fast servers. The VPN you choose should give you top speed with unlimited data so you can easily upload and download large files on Synology with ease. The VPN should not drop your speed by more than 30%.
  • Advanced encryption. There should be 256-bit secure encryption that creates a protective tunnel to protect your data while transferring.
  • Kill switch. An automatic kill switch to make sure no one can track your true IP address in case the VPN connection fails.
  • Zero-log policy. Zero log policy and DNS to further protect your data from criminals, offering online anonymity.
  • Tight security. The best VPN must come equipped with advanced security features like obfuscation, perfect forward secrecy, port forwarding, and split tunneling.
  • Good value for money. Price is an important factor when determining the VPN to use. Therefore, we have made sure that the price of the VPN is justified by the features and services offered.

How to Install VPN on Synology

Installing a VPN on Synology is a task of moderate difficulty. There are two different methods for installing VPNs on Synology, depending on the protocol you wish to use.

Generally, the process is lengthier and more complicated if you want to install your VPN using OpenVPN rather than PPTP. The configuration of OpenVPN is different depending on the VPN provider. However, PPTP installation is generally the same.

We have explained both methods so you can choose the one to your liking and setup VPN on Synology NAS.

Set Up VPN on Synology using OpenVPN

OpenVPN is recommended for Synology users as it offers more security as compared to other protocols like PPTP. In this tutorial, we will show you how to set up ExpressVPN on your Synology using OpenVPN.

Follow these steps to set up OpenVPN on your Synology:

  1. Subscribe to ExpressVPN.
  2. Go to ExpressVPN setup page and sign in.
  3. Under the OpenVPN section, you will see a username, password, and a list of OpenVPN configuration files.
  4. Click on the location you want to download the OpenVPN file of (e.g., the US, France, Germany, etc.).

Turn off IPv6 on Synology

  1. Now, turn on your Synology device and go to Control Panel > Network.
  2. Click Network Interface > LAN > select Edit. 
  3. Click IPv6 > IPv6 Setup > select Off.
  4. Select OK and reboot your Synology.

Create a VPN profile on Synology

  1. Relaunch your Synology, and go to Control Panel > Network > Network Interface.
  2. Click Create > Create VPN profile.
  3.  Under VPN Connection Method, select OpenVPN (via importing a .ovpn file) > click Next.
  4. On the General Setting screen, enter the following details:
    1. Profile Name: Enter the name of the VPN profile you are setting up. It could be anything you like.
    2. User Name: Enter the username you saw on the ExpressVPN setup page.
    3. Password: Enter the password you found on the ExpressVPN setup page.
    4. Import .ovpn file: Now, upload the OpenVPN configuration file found on the ExpressVPN setup page.
    5. CA certificate: You can leave this blank.
  5. Click Next.
  6. Under Advanced Settings, check the boxes: Use default gateway on remote network and Reconnect when the VPN connection is lost.
  7. Click Apply.

Connect to a VPN server location

  1. To connect to a VPN server, in Network Interface, you will see the VPN profile you have created. Click Connect.
  2. When the VPN is connected, you will see the word Connected under your VPN name.
  3. To disconnect, simply click the Disconnect option under your VPN name.

Set Up VPN on Synology using PPTP

Here’s how to set up a VPN on a typical Synology device using PPTP:

  1. Open your Synology control panel
  2. Click on the “Network” icon
  3. Choose “Create” and then select “Create VPN profile”
  4. Choose “PPTP” as your VPN connection method and click “Next”
  5. Enter your credentials such as username, password, server location (you can find these on the provider’s support page) and other details, then click “Next”
  6. Enter advanced settings as follows:

Authentication: Select “MS-CHAP v2”

Encryption: Select “Maximum MPPE (128 bit)”

Although these are the generally applicable settings, make sure to verify your providers’ specifications for advanced settings.

  1. Check “use default gateway on remote network” and “reconnect when the VPN connection is lost
  2. Click “Apply
  3. Select your new VPN profile and click “Connect” 
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What is Synology Router VPN?

Synology offers a wide range of NAS products, including routers. You can convert a Synology router into a VPN server. A Synology router VPN provides a stable and fast connection to remote employees or users from anywhere.

In order to do this, you should first select one service from our list of best VPNs for Synology like ExpressVPN. Once you have subscribed to a VPN provider, you can set up the VPN on your Synology NAS device for a secure connection.

You can also read our article on the best VPN for DD-WRT routers to find out which VPN providers offer the best quality for these routers.

What is a Synology VPN Client?

With the Synology VPN server package, your Synology NAS device can become a VPN client. A Synology VPN client allows DSM users to remotely access resources shared within the same network as your NAS device securely and privately.

You can also use PPTP, OpenVPN, or L2TP/IPSec protocols offered by your VPN provider to turn your Synology device into a VPN Client.

We strongly recommend using a reliable VPN service provider like ExpressVPN that offers only the most up-to-date protocols like OpenVPN. The security of your data stored on your Synology NAS device should be ensured through these protocols.


You can use a free VPN with Synology, but we doubt you will be satisfied with the results. Free VPNs neither have capable servers, nor the privacy and security features required to match the needs of Synology users.

Instead, you can opt for a premium VPN service like ExpressVPN and try it risk-free using its 30-day money-back guarantee.

A Synology VPN works by using encryption and other security measures, allowing home and business owners to make sure the traffic to and from Synology NAS remains encrypted.

It allows DSM users to access the shared resources over the internet within Synology’s local area network. And if you enable the default gateway on your Synology NAS, all network traffic is routed through the remote VPN server.

Before connecting your iPhone to the VPN server on your Synology NAS, make sure you have set up a VPN server on your Synology NAS, and then follow these steps below:

  1. On your iPhone, go to Settings > General > VPN.
  2. Tap Add VPN Configuration and enter all the details of your VPN server.
  3. Tap on the VPN profile you have created and toggle the button to turn on the connection.

Yes, it is perfectly legal to use a VPN on Synology NAS. VPNs are considered legal in most countries of the world, however, if you live in China, Oman, or other countries where using a VPN is banned, you may face certain issues.

Wrapping Up!

Synology NAS devices are highly useful as centralized data storage. It offers a convenient platform for users to store and manage their data from a single point. However, since these devices operate over the internet, it is extremely important to maintain security through high-quality encryption provided by VPNs.

Therefore, with the best VPN for Synology, you can ensure adequate security of your centralized data with military-grade encryption protocols. Among all the VPNs we have tested, ExpressVPN is our top choice for NAS Synology as it offers 3000+ servers, advanced security features, and great speeds.