The advancement of information technology and wireless communication has made our life simpler by making information available even from distant sources at the click of a mouse. With Remote Access technology, a user can access a computer located in a remote distance by gaining full control of the system. This technology comes with a bundle of advantages, as it eliminates the distance barrier while saving time and money required in actually traveling to that place. However, it raises an important issue of security in accessing remote systems. The threat of information leakage and illegal access and control of a system makes it important to ensure measures for Secure Remote Access and integrity of data.

To ensure safety in the use of Remote Access to a system, which might be a remote PC or a system in a large network of a big organization, a secure infrastructure should be designed as total end-to-end solution for the entire communication framework. One of the most common methods of securing Remote Access is a virtual private network (VPN).

There are several varieties of affordable VPN protocols-, PPTP (Point-to-Point Tunneling Protocol), L2TP (Layer 2 Tunneling Protocol) and SSL. By creating an encrypted "tunnel" through the public network, VPNs protect data in transit while achieving significant savings over alternative approaches to Remote Access, such as dedicated dial-up telephone lines.

Increased threats of security of information and simultaneous awareness about the same has made a large numbers of ISPs and security vendors offer VPN-termination services as part of a total managed security package. Unfortunately, VPN technology alone does not provide reliable proof about who is accessing the data at either end of the tunnel. The solution to this problem is Remote Secure Access technology, which combines diverse security technologies--including strong authentication, access management, encryption and digital signatures--to empower employees to achieve greater results while offering a high level of security compliance.