AppendixH Cisco Secure ACS Internal Architecture
WindowsNT/2000 Environment Overview
H-2
Cisco Secure ACS 3.0 for Windows 2000/NT Servers User Guide
78-13751-01, Version 3.0
Windows NT/2000 Environment Overview
This section gives a brief overview of essential WindowsNT/2000 concepts that
relate to Cisco Secure ACS as a service of Windows NT/2000.

Windows NT/2000 Services

All Cisco Secure ACS services can be started, stopped, and restarted from the
WindowsNT/2000 Services window. The Cisco Secure ACS services are
preceded by the letters CS. The sorting mechanism within Windows NT/2000
Services lists services alphabetically. All Cisco Se cure ACS services should be
displayed in one area of the list.

Windows NT/2000 Registry

The Windows NT/2000 Registry is a tree-like storage area for all application
information.
Note We recommend that you do not modify this file unless you have enough
knowledge and experience to edit the file without destroying any exist ing data
in the file. Always back up the Windows Registry before editing.
The Cisco Secure ACS information is located in the following Windows Registry
key:
HKEY_LOCAL_MACHINE\SOFTWARE\CISCO
Cisco Secure ACS Web Server
Cisco Secure ACS has a built-in web server for support using a hypertext markup
language (HTML) interface. This eliminates the necessity of installing another
web server on the WindowsNT/2000 server running Cisco Secure ACS. Because
the Cisco Secure ACS web server uses port 2002, you can use another web server
on the same machine to provide other web services.