Implementing AAA Security Services
Chapter 6 began the issue of authentication. This chapter delves further into this topic.
Accessing the Network When thinking about securing your network, keep in mind the three primary ways someone can gain access to your network:
1. Through public networks, such as the Internet 2. Through virtual private networks (VPNs) 3. Through dial-in
The ﬁrst two access points are relatively easy to cover and their security is addressed in Chapter 8. However, the requirement to support dial-in users might prove to be the security administrator’s biggest challenge. This is especially true if you allow users to dial in directly to their workstations or servers, bypassing all other security methods in place.