QNAP Systems Ts 253 User Guide

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Privilege Settings 
Select the VPN users and specify their privileges. 
 
Add VPN users 
Click Add VPN Users and check the services you want to allow each user to connect with. Both local 
users and domain users can be VPN users. You can also search for users in the search bar. 
 
Note: To connect to a VPN server using domain user accounts, you must enable the 
service in Domain Security.  

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Delete VPN users 
Click Delete to remove VPN users. The users will be unable to connect to the VPN service after being 
deleted. 
 
Connection List 
This list shows information about each connection with a server including login time, uptime, 
username, source IP, VPN client IP, and connection method. 
Click “Disconnect” on the table to disable client connections. 
 
VPN Client 
The NAS provides the VPN client service which can connect to a VPN server via PPTP, OpenVPN and 
L2TP/IPSec. The NAS...

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o PAP: The password will not be encrypted. 
o CHAP: The password will be encrypted using CHAP. 
5.  If you choose MS-CHAP or MS-CHAPv2, go to the Encryption menu and select an option: 
o None: The VPN connection will not be encrypted. 
o Medium (AES 40/128 bit): The VPN connection will be encrypted using a 40-bit or 128-bit key. 
o High (AES 256 bit): The VPN connection will be encrypted using a 256-bit key (the highest-possible 
level.) 
6.  Specify the subnet mask. 
7.  Select any of the...

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If you select Allow other network devices to connect to the VPN through the NAS, the network 
device can access the VPN via the NAS. To enable this function, you must change the default gateway 
on that other device. Using a Windows PC as an example: 
1.  Go to Control Panel > Network and Sharing Center > Change adapter settings.  
2.  Right-click the connection icon and choose Properties.  
3.  Select Internet Protocol Version 4 (TCP/IP) and click Properties.  
4.  Choose Use the following IP...

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Connect a VPN server via L2TP/IPSec 
 
1.  Go to QVPN Service > VPN Client. 
2.  Click Add > L2TP/IPSec to connect a VPN server. 
3.  Enter the connection configuration settings, including the profile name, server address (that you 
want to connect to), and the username and password of the VPN server. 
4.  Choose any of the following authentication mechanisms from the Authentication menu to protect 
VPN client’s password during authentication: 
o MS-CHAPv2: The password will be encrypted using...

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Enable Connection Logs on QVPN Service 
 
1. Open QVPN Service. 
2. Go to “Logs” > “Connection Logs”. 
3. Move the slider to the right. 
 
Event Logs 
QVPN Service creates a log entry every time a user enables or disables services, changes settings, 
and modifies the configuration. The event logs include the date, time, username, and content. 
 
Note: QVPN Service only displays the event logs. To copy or delete a log, or to export the 
list, go to “Control Panel” > “System” > “System Logs”.  

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Qsync Central 
 
Qsync Central is a cloud-based file synchronization service on the NAS. Simply add files to 
your local Qsync folder, and they will be available on your NAS and all its connected devices. 
 
 
In this chapter, the following topics are covered: 
Before you Start 
Starting Qsync Client  
Synchronization 
Sharing 
Remote Access 
Synchronization Management 
Version Control 
Managing or Monitoring Qsync Status via Web Browser 
Using Centralized Mode for...

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1. Creating user accounts on the NAS 
o Go to Control Panel > Privilege Settings > Users > click Create (or go to 
Qsync Central > Users > Create a User.)  
o Only NAS administrators can create accounts. 
 
2. Downloading Qsync Central  
1. Go to “Main Menu” > “App Center” to launch App Center. 
2. In the search field, type “Qsync”. 
3. Select “+ Install” under the Qsync Central icon in the search results.  
 
3. Enable Home Folders for All Users  
1. Go to “Control Panel” > “Privilege” > “Users”...

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Starting Qsync Client  
 
Double click the Qsync shortcut in Windows to open the Qsync local folder. Click the Qsync 
Client icon on the taskbar to bring up the menu. If you copy/move files to the local Qsync 
folder on one of your devices, the files will be synced with all the other devices (devices with 
the Qsync Client installed that are connected to the NAS.) From now on, there is no need to 
copy files back-and-forth between your PC and these other devices or worry about the size 
of files...

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2. Choose to send the link via email or copy the link to directly share it. 
3. Click Settings to see more options, including creating a SSL link, the expiration date, or 
password. 
 
For the NAS, right click on the file that you want to share in the Qsync folder within File 
Station and click Share.  
 
For mobile devices, launch Qfile to share the file in the local Qsync folder by clicking the icon 
to the right and click Share.  
 
The file recipients can click the link or copy and paste it to...