Chapter 18. VPN and Dial-up Solutions

In this Chapter

Choosing the Right VPN Solution

Best Practices for Securing L2TP

Best Practices for Securing PPTP

Taking Advantage of Internet Authentication Service

Using VPN for Wireless

Deploying VPN and Dial-up Services

Using Site-to-Site VPNs

Using Load Balancing to Add Scalability and Resiliency

BEST PRACTICE

Installing and Using IAS

As more and more companies become more and more dependent on computers for all business processes, users have an increased need to access corporate resources from locations other than the office. Traveling users, telecommuters, and business partners all benefit from being able to access corporate resources remotely.

This remote access to resources traditionally takes one of two forms ”Virtual Private Networks (VPN) or direct dial-up access. VPNs often use the Internet for their connectivity and encrypt the flow of data to ensure that data is not intercepted and stolen or modified. Dial-up access refers to the classic modem access via the telephone network to corporate-owned modem pools.

Both methods are commonly used in the industry. Both methods also have some inherent insecurities and performance issues that must be addressed to optimize their use. This chapter gives you the information you need to build secure and scalable remote access solutions based on your specific needs.