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SSL VPN : Understanding, evaluating and planning secure, web-based remote access

Joseph Steinberg, Tim Speed

A comprehensive overview of SSL VPN technologies and design strategies
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Book Details

ISBN 139781904811077
Paperback212 pages

About This Book

  • Understand how SSL VPN technology works
  • Evaluate how SSL VPN could fit into your organisation?s security strategy
  • Practical advice on educating users, integrating legacy systems, and eliminating security loopholes
  • Written by experienced SSL VPN and data security professionals


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.

Table of Contents

Table of Contents

Chapter 1: Introduction to SSL VPN
The Internet
Reference Models
Introducing Hacker Bob
VPN Examples
Trusted Networks
Chapter 2: SSL VPN: The Business Case
SSL VPN: A Historical Background
Remote Access: Measuring Return-on-Investment
So What Does SSL VPN Actually Give Me?
Chapter 3: How SSL VPNs Work
Appliances Vs. Software
The SSL Protocol
Establishing Secure Tunnels Using SSL
Reverse Proxy Technology
SSL Remote Access: Reverse Proxy Technology Plus
SSL VPN Sample Session
Chapter 4: SSL VPN Security
Authentication and Authorization
End Point Security Concerns
Department of Defense (DoD) Requirements
Server-Side Security Issues
Chapter 5: Planning for an SSL VPN
Determining Business Requirements
Selecting an Appropriate SSL VPN
Determining which SSL VPN Functions to Use
Where to Deploy the SSL VPN server
Planning for Deployment
User and Administrator Training
Chapter 6: Educating the User
Building an Education Plan
Chapter 7: Legacy Data Access
Computing Elements
The Web Challenge
Meeting the Challenge
Tunneling to the Other Side
Other Applications
Chapter 8: The Future of SSL VPN Technology
Standardized Feature Sets
SSL VPN Products for Small, Medium, and Large Organizations
Application-Specific SSL VPNs
Merging with IPSec VPN and Firewall Technology
SSL Access Platforms
Support for More Diverse Computers
Improved Performance and Reliability
Two "Business Developments"

What You Will Learn

  • How SSL VPN technology works, and how it fits into existing network architectures
  • Evaluating SSL VPN for your organization
  • Understand what to look out for when talking to vendors
  • How to plan an SSL VPN implementation for your business
  • Educate staff to maintain SSL VPN security
  • Strategies for providing access to internal legacy applications via SSL VPN
  • A heads-up on likely trends and possibilities for the future of SSL VPN


In Detail

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.


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