How to Cheat at VoIP Security

Appendix A

Validate Existing Security Infrastructure

Solutions in this chapter:

■ Security Policies and Processes

■ Physical Security

■ Server Hardening

■ Supporting Services

■ Unified Network Management

Introduction

We begin the process of securing the VoIP infrastructure by reviewing and validating the existing security infrastructure. Addition of VoIP components to a preexisting data network is the ideal opportunity to review and bolster existing security policy, architecture, and processes.

One way of visualizing the components of a given security architecture is to use Figure A.1, which graphically shows a number of network security interfaces.

Figure ...