Virtual Private Networks (VPNs) provide remote workers with secure access to their company network via the internet by encrypting all data sent between the company network and the user?s machine (the client). Before SSL VPN this typically required the client machine to have special software installed, or at least be specially configured for the purpose.
Clientless SSL VPNs avoid the need for client machines to be specially configured. Any computer with a Web browser can access SSL VPN systems. This has several benefits:
- Low admin costs, no remote configuration
- Users can safely access the company network from any machine, be that a public workstation, a palmtop or mobile phone
- By pass ISP restrictions on custom VPNs by using standard technologies
SSL VPN is usually provided by a hardware appliance that forms part of the company network. These appliances act as gateways, providing internal services such as file shares, email servers, and applications in a web based format encrypted using SSL. Existing players and new entrants, such as Nokia, Netilla, Symantec, Whale Communications, and NetScreen technologies, are rushing our SSL VPN products to meet growing demand.
This book provides a detailed technical and business introduction to SSL VPN. It explains how SSL VPN devices work along with their benefits and pitfalls. As well as covering SSL VPN technologies, the book also looks at how to authenticate and educate users ? a vital element in ensuring that the security of remote locations is not compromised. The book also looks at strategies for making legacy applications accessible via the SSL VPN.
This book is a business and technical overview of SSL VPN technology in a highly readable style. It provides a vendor-neutral introduction to SSL VPN technology for system architects, analysts and managers engaged in evaluating and planning an SSL VPN implementation.
Visit the Free Online Edition for SSL VPN and learn more about the book, you can read through a full chapter, "How SSL VPNs Work", and discover what each chapter from this book has in store.
The book blends technically rigorous descriptions with a friendly approach based on practical examples and scenarios. The authors write in clear, informal language and make extensive use of diagrams and images. The book begins with an overview of SSL VPN?s purpose, and the technical and business trends that are making it popular today. It then looks at how SSL VPNs work and how they fit into existing network plans. The effect of SSL VPN on the wider business environment is then considered, before looking at how SSL VPN technology is likely to develop in the future.
Who this book is for
This book aimed at IT network professionals and managers who are currently evaluating SSL VPN technologies. It requires a broad understanding of networking concepts, but does not require specific and detailed technical knowledge of protocols or vendor implementations.
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