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Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 5.0
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A P P E N D I X
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System Architecture
This appendix describes the system architecture of IPS 5.0. It contains the following sections:
•
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
System Overview
You can install Cisco IPS software on two platforms: the appliances and the modules (refer to
“Supported Sensors,” in
Installing Cisco Intrusion Prevention System Appliances and Modules 5.0
for a
list of current appliances and modules).
This section contains the following topics:
•
System Design, page A-1
•
IPS 5.0 New Features, page A-3
•
User Interaction, page A-4
•
Security Features, page A-5
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.
