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Virtual Private Networks For Dummies

Virtual Private Networks For Dummies
Author: Mark S. Merkow
Publisher: John Wiley & Sons
Total Pages: 374
Release: 1999-12-02
Genre: Computers
ISBN: 0764505904

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Let’s face it: the information age makes dummies of us all at some point. One thing we can say for sure, though, about things related to the Internet is that their best strengths are often also their worst weaknesses. This goes for virtual private networks (VPNs). They may reach a wide base of customers – but can also be vulnerable to viruses, hackers, spoofers, and other shady online characters and entities. VPNs may allow for super-efficient communication between customer and company – but they rely on information which, if compromised, can cause huge losses. The Internet is still a frontier – sometimes so wide open it leaves us bewildered – and, like any frontier, the risks go hand in hand with potentially huge rewards. Virtual Private Networks for Dummies offers you a no-nonsense, practical guide to evaluating your company’s need for a VPN, understanding what it takes to implement one, and undertaking the challenging quest to set it up, make it work, and keep it safe. Whether you’re the resident expert leading the project team, or you just want to learn what makes e-commerce tick, this detailed, from-the-ground-up guide will soon have you comfortably conceptualizing: Security goals and strategies The evolution of VPNs Privacy in VPNs Extranets Remote-Access VPNs Funding Custom network solutions design Testing VPNs And more With new products and technologies offering supposedly revolutionary solutions to IT departments every day, this book focuses on the real world – you know, the one full of obstacles, mishaps, threats, delays, and errors – and gives you the background knowledge to make decisions for yourself about your VPN needs. Written with a dash of humor, Virtual Private Networks for Dummies contains both technical detail (standards, protocols, etc.) and more general concepts (such as conducting cost-benefit analyses). This clear, authoritative guide will have you securely and cost-effectively networking over the Internet in no time.


Virtual Private Networks

Virtual Private Networks
Author: Charlie Scott
Publisher: "O'Reilly Media, Inc."
Total Pages: 238
Release: 1999
Genre: Computers
ISBN: 9781565925298

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Historically, only large companies could afford secure networks, which they created from expensive leased lines. Smaller folks had to make do with the relatively untrusted Internet. Nowadays, even large companies have to go outside their private nets, because so many people telecommute or log in while they're on the road. How do you provide a low-cost, secure electronic network for your organization?The solution is a virtual private network: a collection of technologies that creates secure connections or "tunnels" over regular Internet lines--connections that can be easily used by anybody logging in from anywhere. A number of products now exist to help you develop that solution.This book tells you how to plan and build a VPN. It starts with general concerns like costs, configuration, and how a VPN fits in with other networking technologies like firewalls. It continues with detailed descriptions of how to install and use VPN technologies that are available for Windows NT and Unix, such as PPTP and L2TP, Altavista Tunnel, Cisco PIX, and the secure shell (SSH).New features in the second edition include SSH, which is a popular VPN solution for Unix systems, and an expanded description of the IPSec standard, for which several vendors have announced support.Topics include: How the VPN compares to other available networking technologies Introduction to encryption, firewalls, the IPSec standard, and other technologies that let VPNs work Point to Point Tunneling Protocol (PPTP) and L2TP The Altavista Tunnel The Cisco PIX Firewall Secure Shell (SSH) Maintenance and troubleshooting


Virtual Private Networks

Virtual Private Networks
Author: Ruixi Yuan
Publisher: Addison-Wesley Professional
Total Pages: 0
Release: 2001
Genre: Extranets
ISBN: 9780201702095

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VPNs enable any enterprise to utilize the Internet as its own secure private network. In this book, two leading VPN implementers offer a start-to-finish, hands-on guide to constructing and operating secure VPNs. Going far beyond the theory found in most books, Ruixi Yuan and Tim Strayer present best practices for every aspect of VPN deployment, including tunneling, IPsec, authentication, public key infrastructure, and network/service management. Strayer and Yuan begin with a detailed overview of the fundamental concepts and architectures associated with enterprise VPNs, including site-to-site VPNs, remote access VPNs, and extranets. They compare all options for establishing VPN tunnels across the Internet, including PPTP, L2F, and L2TP. Next, they present in-depth coverage of implementing IPsec; establishing two-party or trusted third-party authentication; building a robust public key infrastructure; and managing access control. The book includes expert coverage of VPN gateway configuration, provisioning, and management; Windows and other VPN clients; and network/service management, including SLAs and network operations centers. Finally, the authors preview the future of VPNs, showing how they may be enhanced to provide greater quality of service and network intelligence. For all networking and IT professionals, security specialists, consultants, vendors, and service providers responsible for building or operating VPNs.


A Technical Guide to IPSec Virtual Private Networks

A Technical Guide to IPSec Virtual Private Networks
Author: James S. Tiller
Publisher: CRC Press
Total Pages: 376
Release: 2017-07-27
Genre: Computers
ISBN: 0203997492

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What is IPSec? What's a VPN? Why do the need each other? Virtual Private Network (VPN) has become one of the most recognized terms in our industry, yet there continuously seems to be different impressions of what VPNs really are and can become. A Technical Guide to IPSec Virtual Private Networks provides a single point of information that represents hundreds or resources and years of experience with IPSec VPN solutions. It cuts through the complexity surrounding IPSec and the idiosyncrasies of design, implementation, operations, and security. Starting with a primer on the IP protocol suite, the book travels layer by layer through the protocols and the technologies that make VPNs possible. It includes security theory, cryptography, RAS, authentication, IKE, IPSec, encapsulation, keys, and policies. After explaining the technologies and their interrelationships, the book provides sections on implementation and product evaluation. A Technical Guide to IPSec Virtual Private Networks arms information security, network, and system engineers and administrators with the knowledge and the methodologies to design and deploy VPNs in the real world for real companies.


Building Linux Virtual Private Networks (VPNs)

Building Linux Virtual Private Networks (VPNs)
Author: Oleg Kolesnikov
Publisher: Sams Publishing
Total Pages: 412
Release: 2002
Genre: Computer networks
ISBN: 9781578702664

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The authors meet the growing demands of de-centralized companies that need a secure and functional network using Linux. The only book available that extensively covers the combination of VPN technology and Linux, this volume teaches first hand how to build various VPN solutions with individual setup guides.


Troubleshooting Virtual Private Networks

Troubleshooting Virtual Private Networks
Author: Mark Lewis
Publisher: Cisco Press
Total Pages: 844
Release: 2004
Genre: Computers
ISBN: 9781587051043

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& Learn the troubleshooting techniques that every IT professional running a Virtual Private Network (VPN) must master & & Experience real-world solutions through practice scenarios in each chapter & & An essential workplace reference guide for every VPN management site


Building and Managing Virtual Private Networks

Building and Managing Virtual Private Networks
Author: David R. Kosiur
Publisher:
Total Pages: 424
Release: 1998-10-12
Genre: Computers
ISBN:

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Everything you need to know about selecting, designing, building, and managing the right VPN for your company Building and Managing Virtual Private Networks Get complete answers to all your VPN questions in Building and Managing Virtual Private Networks. International networking guru Dave Kosiur provides a candid assessment of the current state of VPN technology. With the help of fascinating and informative case studies based on the experiences of organizations at the forefront of the VPN revolution, he clearly explains the basic concepts and technologies involved, as well as the business reasons for making the switch to an Internet-based network. And he provides practical guidance on all aspects of designing, building, and managing the best VPN for your organization. You get the complete lowdown on: * The pros and cons of all VPN types now available * All major classes of VPN hardware and software * Key VPN design issues and business solutions * Detailed cost comparison * Selecting the right ISP for your VPN * Building a high-performance extranet * Remote access * VPN security threats and solutions, including best-in-class cryptographic techniques * Firewalls and routers


Virtual Private Networks

Virtual Private Networks
Author: Dennis Fowler
Publisher: Morgan Kaufmann
Total Pages: 244
Release: 1999-05-21
Genre: Computers
ISBN: 9781558605756

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"Dennis Fowler provides an insightful view to both the business benefits and technical requirements to VPNs. His examples of other customers' experiences with VPNs breathe life into the discussion." From the Foreword by Susan Scheer Aoko, Cisco systems, Inc. Network-dependent companies are excited by the benefits promised by the virtual private network, including lower costs, greater flexibility, and improvements in connectivity. But they also have questions: What benefits are real? How can they be measured? What are the expenses and the dangers? Virtual Private Networks: Making the Right Connection is an intelligent introduction written especially for business and IT professionals who want a realistic assessment of what a VPN can provide for their organizations. Covering advantages and risks, this book expands your understanding of what you can do with a VPN, while detailing all that implementing it will demand of you. With its help, you'll find your way through VPN hype to the answers you need to make sound decisions. Features Thoroughly explains VPN concepts and technologies, and examines the potential of VPNs as intranets, extranets, and remote access solutions. Covers essential VPN topics like tunneling, encapsulation, encryption, security, and protocols. Provides detailed points of comparison between typical VPN costs and the costs of maintaining traditional WANs. Offers frank consideration of the hidden costs and risks sometimes associated with VPNs, helping you decide if a VPN is right for you. Lists and assesses the software and hardware products you may need to implement a VPN. Discusses both Internet-based VPNs and VPN services offered by providers of "private" ATM and frame relay networks, detailing the pros and cons of each.


Cisco Secure Virtual Private Networks

Cisco Secure Virtual Private Networks
Author: Andrew G. Mason
Publisher:
Total Pages: 428
Release: 2002
Genre: Computers
ISBN:

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Based on the official instructor-led training course of the same name in a self-study product, Cisco® Secure Virtual Private Networks is a comprehensive, results-oriented book designed to give readers the knowledge to plan, administer, and maintain a Virtual Private Network (VPN). Readers are taught to accomplish several specific tasks, including identifying the features, functions, and benefits of Cisco® Secure VPN products; identifying the component technologies implemented in Cisco® Secure VPN products; utilizing commands required to configure and test IPSec in Cisco IOS® software and PIX Firewalls; installing and configuring the Cisco® VPN Client to create a secure tunnel to a Cisco® VPN Concentrator and PIX Firewall; configuring and verifying IPSec in the Cisco® VPN Concentrator, Cisco router, and PIX Firewall; and configuring the Cisco® VPN Concentrator, Cisco® router, and PIX Firewall for interoperability.


VPNs Illustrated

VPNs Illustrated
Author: Jon C. Snader
Publisher: Addison-Wesley Professional
Total Pages: 699
Release: 2015-01-09
Genre: Computers
ISBN: 0134171810

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Virtual private networks (VPNs) based on the Internet instead of the traditional leased lines offer organizations of all sizes the promise of a low-cost, secure electronic network. However, using the Internet to carry sensitive information can present serious privacy and security problems. By explaining how VPNs actually work, networking expert Jon Snader shows software engineers and network administrators how to use tunneling, authentication, and encryption to create safe, effective VPNs for any environment. Using an example-driven approach, VPNs Illustrated explores how tunnels and VPNs function by observing their behavior "on the wire." By learning to read and interpret various network traces, such as those produced by tcpdump, readers will be able to better understand and troubleshoot VPN and network behavior. Specific topics covered include: Block and stream symmetric ciphers, such as AES and RC4; and asymmetric ciphers, such as RSA and EIGamal Message authentication codes, including HMACs Tunneling technologies based on gtunnel SSL protocol for building network-to-network VPNs SSH protocols as drop-in replacements for telnet, ftp, and the BSD r-commands Lightweight VPNs, including VTun, CIPE, tinc, and OpenVPN IPsec, including its Authentication Header (AH) protocol, Encapsulating Security Payload (ESP), and IKE (the key management protocol) Packed with details, the text can be used as a handbook describing the functions of the protocols and the message formats that they use. Source code is available for download, and an appendix covers publicly available software that can be used to build tunnels and analyze traffic flow. VPNs Illustrated gives you the knowledge of tunneling and VPN technology you need to understand existing VPN implementations and successfully create your own.