Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

410 Chapter 11. Implementing Virtual Private Networks with SLES 9 This chapter covers the following requirements for Novell's Certified Linux Engineer (CLE) 9 certif- ication: 1. Implement a VPN on SLES 9. With SLES 9, you can implement Virtual Private Networks (VPNs), which enable you to use the Internet instead of an expensive leased line for your WAN and remote access needs. In this chapter, we'll discuss how to use your SLES 9 server to provide VPN services. Specifically, we'll discuss · How VPNs work. · Configuring a VPN on SLES 9. Let's begin by discussing the first topic--how VPNs work.