Appendix; System Architecture; System Overview; System Design - Cisco 4215 - Intrusion Detection Sys Sensor Configuration Manual

System Architecture

This appendix describes the system architecture of IPS 5.0. It contains the following sections:
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System Overview

You can install Cisco IPS software on two platforms: the appliances and the modules (refer to
"Supported Sensors," in
list of current appliances and modules).
This section contains the following topics:
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System Design

IPS software runs on the Linux operating system. We have hardened the Linux OS by removing
unnecessary packages from the OS, disabling unused services, restricting network access, and removing
access to the shell.
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System Overview, page A-1
MainApp, page A-5
SensorApp, page A-22
Communications, page A-31
IPS 5.0 File Structure, page A-36
Summary of IPS 5.0 Applications, page A-37
Installing Cisco Intrusion Prevention System Appliances and Modules 5.0
System Design, page A-1
IPS 5.0 New Features, page A-3
User Interaction, page A-4
Security Features, page A-5
Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 5.0
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