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Cisco ar directory structure, Program flow – Cisco Cisco Access Registrar 3.5 User Manual

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2-4

Cisco Access Registrar 3.5 Concepts and Reference Guide

OL-2683-02

Chapter 2 Understanding Cisco Access Registrar

Cisco AR Directory Structure

concurrently, you might create two Session Managers and three Resource Managers. One dynamic IP
Resource Manager that is referenced by both Session Managers, and two concurrent session Resource
Managers, one for each Session Manager.

In addition, Cisco Access Registrar lets you pose queries about sessions. For example, you can query
Cisco Access Registrar about which session (and thus which NAS-Identifier, NAS-Port and/or
User-Name) owns a particular resource, as well as query Cisco Access Registrar about how many
resources are allocated or how many sessions are active.

Cisco AR Directory Structure

The installation process populates the /opt/CSCOar directory with the subdirectories listed in

Table 2-1

.

Note

This directory structure is different from that of previous version of Cisco AR.

Program Flow

When a NAS sends a request packet to Cisco Access Registrar with a name and password, Cisco Access
Registrar performs the following actions. Note,

Table 2-2

describes the flow without regard to scripting

points.

Table 2-1

/opt/CSCOar Subdirectories

Subdirectory

Description

.system

Contains ELFs, or binary SPARC executables that should not be run directly

bin

Contains shell scripts and programs frequently used by a network
administrator; programs that can be run directly

conf

Contains configuration files

data

Contains the radius directory, which contains session backing files; and the
db directory, which contains configuration database files

examples

Contains documentation, sample configuration scripts, and shared library
scripts

lib

Contains Cisco Access Registrar software library files

logs

Contains system logs and is the default directory for RADIUS accounting

odbc

Contains Cisco Access Registrar ODBC files

scripts

Contains sample scripts that you can modify to automate configuration, and
to customize your RADIUS server

temp

Used for temporary storage

ucd-snmp

Contains the UCD-SNMP software Cisco Access Registrar uses

usrbin

Contains a symbolic link that points to bin.