Virtual Private Network using JAVA, J2EE

Introduction
A virtual private network (VPN) is a private data network that makes use of the public telecommunication infrastructure, maintaining privacy through the use of a tunneling protocol and security procedures. The idea of the VPN is to give the company the same capabilities at much lower cost by using the shared public infrastructure rather than a private one.
A well-designed VPN can provide great benefits for an organization. It can:
· Extend geographic connectivity.
· I ....etc

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Dynamic Virtual Private Network



The growth of the Internet has revolutionized communication facilities. Through years, more and more communication standards and facilities emerged; e-mail and faxing direct from and to PC are examples. Now the Internet has also crept into the world of business. It was there in the business for years but was not directly involved with it.

In order to accommodate new, changing and expanding groups of users and provide these users with information in a number of ways, intranets should deliver seve ....etc

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Definition
Based on internet technology, intranets are becoming an essential part of corporate information systems today. However, internets were not originally designed with businesses in mind. It lacks the technology required for secure business transactions and communications. A challenge therefore arises for businesses with intranet, i.e. how to establish and maintain trust in an environment which was originally designed for open access to information. More specifically, a way has to be found to secure an intranet without impinging on its ....etc

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hi i want full detail ....etc

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Virtual Private Network

VPNs have emerged as the key technology for achieving security over the Internet. While a VPN is an inherently simple concept, early VPN solutions were geared towards large organizations and their implementation required extensive technical expertise. As a consequence, small and medium-sized businesses were left out of the e-revolution. Recently, VPN solutions have become available that focus specifically on the needs of small and medium-sized businesses.

Historically, t ....etc

[:=Read Full Message Here=:]

The growth of the Internet has revolutionized communication facilities. Through years, more and more communication standards and facilities emerged; e-mail and faxing direct from and to PC are examples. Now the Internet has also crept into the world of business. It was there in the business for years but was not directly involved with it.

In order to accommodate new, changing and expanding groups of users and provide these users with information in a number of ways, intranets should deliver several benefits, including flexibility, in ....etc

[:=Read Full Message Here=:]

The growth of the Internet has revolutionized communication facilities. Through years, more and more communication standards and facilities emerged; e-mail and faxing direct from and to PC are examples. Now the Internet has also crept into the world of business. It was there in the business for years but was not directly involved with it. In order to accommodate new, changing and expanding groups of users and provide these users with information in a number of ways, intranets should deliver several benefits, including flexibility, interoperabil ....etc

[:=Read Full Message Here=:]

Definition

Based on internet technology, intranets are becoming an essential part of corporate information systems today. However, internets were not originally designed with businesses in mind. It lacks the technology required for secure business transactions and communications. A challenge therefore arises for businesses with intranet, i.e. how to establish and maintain trust in an environment which was originally designed for open access to information. More specifically, a way has to be found to secure an intranet without impinging on it ....etc

[:=Read Full Message Here=:]

ABSTRACT
Virtual Private Networks is a concept introduced to implement global Wide Area Network(WAN) on the Internet. This way enormous costs involved in the traditional implementation of these networks i.e. through dedicated lines or satellite links is reduced considerably. A way to maintain fast, secure and reliable communications is attained wherever the offices are.

In the VPN, Internet is used as the data pipelined replacing the traditional datalines. This approach is just right for small and medium sized busines ....etc

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Definition
VPNs have emerged as the key technology for achieving security over the Internet. While a VPN is an inherently simple concept, early VPN solutions were geared towards large organizations and their implementation required extensive technical expertise. As a consequence, small and medium-sized businesses were left out of the e-revolution. Recently, VPN solutions have become available that focus specifically on the needs of small and medium-sized businesses. Historically, the term VPN has also been used in contexts other than the Inter ....etc

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