Security in Virtual private network

Information security, sometimes shortened to Info Sec, is the practice of defending information from unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. It is a general term that can be used regardless of the form the data may take (e.g. electronic, physical). Virtual private networks (VPNs) offer low-cost, secure, dynamic access to private networks. Such access would otherwise only be possible by using an expensive leased line solution or by dialling directly into the local area network (LAN). VPNs allow remote users to access private networks securely over the internet. A remote user in one part of the UK can establish a secure network connection using a VPN to a school LAN in another part of the UK and only incur the call cost for the local internet connection. A virtual private network gives secure access to LAN resources over a shared network infrastructure such as the internet. It can be conceptualised as creating a tunnel from one location to another, with encrypted data travelling through the tunnel before being decrypted at its destination. Remote users can connect to their organisation's LAN or any other LAN. They can access resources such as email and documents as if they were connected to the LAN as normal. By using VPN technology it is possible to connect to a school LAN from anywhere in the world via the internet, and to access it securely and privately without incurring the large communication costs associated with other solutions. Methods and Technology Used: i) To minimize usage of CPU and memory. ii) Comparison between two different platform of VPN based on hardware. Five phases for development of test bed process: i) Planning ii) Design iii) Implementation iv) Testing v) Compare vi) Compile Two VPN technologies that are being used are: i) Site-to-site VPN ii) Remote Access VPN