Virtual Private Network for Remote Access

The most useful feature of a virtual private network is the capability to remotely access a computer network that runs within the business entity. Remote access enables users outside the private business network to secure connection on the resources as if they are plugged in to the actual servers. Companies with a large portion of employees on the field benefit the most from remote access VPN.

The two components in a remote VPN, such as HMA, are the network access server (NAS) and the client software. The former is also referred to as remote access server or media gateway to make an emphasis on how it is used. Dedicated or shared servers may be used as NAS. When a shared server is used, simultaneous set of connections needs to be handled, thus, a multiple software application is also required. Dedicated servers, on the other hand, require simpler setup. The NAS component is responsible for validating credentials before the users are allowed to sign in. The authentication process may be carried out on the server; in other cases, a separate server running on the same network may be used for the required authentication.

The second component, which is the client software, needs to be installed on the remote computer to be used by the employees on the field. The client software is responsible for establishing and maintaining secure connections between the client computer and the private network. Connection status is monitored by the client software so as to provide relevant information to the user. Possible breaches in security are also tracked by the same application. Simple VPN applications that serve basic functions are included in popular operating systems nowadays.

Large organizations with the right expertise and resources deploy and maintain their own virtual private network. Outsourcing the VPN service via an enterprise service provider (ESP) is also a popular option.