QVPN 

QVPN Service enables secure virtual private network (VPN) connections between QNAP devices and user devices, providing data protection over the Internet. A virtual private network enables secure access to network resources and services across public networks. The QVPN Service integrates both VPN server and client capabilities, providing the ability to create a VPN client that connects to a remote server or third-party provider to access contents or services.