WHAT IS A REMOTE ACCESS VPN?
Businesses use remote access VPNs to establish a secure connection between their network and devices used by remote employees. Once connected, employees can access resources on the network as if their devices were physically connected in the office..
A remote access VPN works by creating a virtual tunnel between an employee's device and the company's network. This tunnel runs through the public Internet, but the data sent back and forth is protected by encryption and security protocols to ensure its privacy and security..
The two main components of this type of VPN are the network access server (often called NAS, but not to be confused with network storage) and the VPN client software.
The network access server can be a dedicated server or a software application running on a shared server. Users connect to the NAS over the Internet to use a VPN with remote access. To log in to a VPN, the NAS requires users to provide valid credentials. To authenticate these credentials, the NAS uses either its own authentication process or a separate authentication server running on the network..
Users must also install client software on their devices to establish and maintain a VPN connection. Today, most operating systems come with built-in software that can connect to a VPN with remote access, although some VPN services may require users to install a specific application. The client software establishes a tunnel connection to the NAS and manages the encryption required to secure the connection..