Description:
Hands-on techniques for enabling authentication, authorization, and
accounting
- Understand the security concepts behind the AAA framework
- Learn message formats, communication, and message encryption using the
TACACS+ and RADIUS protocols
- Configure and troubleshoot AAA on Cisco routers
- Understand where to position and install the CSACS in your network
- Explore and customize the CSACS interface
- Configure CSACS user accounts, user groups, and shared profile components
- Add AAA clients and manage network connections
- Configure external databases and perform database replication and backup
- Explore the various reports and logs available in CSACS
- Learn how AAA models apply to service provider environments
- Install and configure Cisco Access Registrar
As network infrastructures evolve, it is increasingly important that access
to vital corporate resources is vigilantly monitored and controlled. The Cisco
identity management solutions, including Cisco Secure Access Control Server
(CSACS), address this requirement, enabling security, control, and
administration of the growing population of users that connect to corporate
networks. CSACS, an essential component of the Cisco Identity Based Networking
Services (IBNS) architecture, extends access security by combining
authentication, user and administrator access, and policy control from a
centralized identity-networking framework. This allows greater flexibility and
mobility, increased security, and user productivity gains.
Cisco Access Control Security provides you with the skills needed to
configure authentication, authorization, and accounting (AAA) services on Cisco
devices. Separated into three parts, this book presents hard-to-find
configuration details of centralized identity networking solutions. Part I
provides an overview of the AAA architecture, complete with discussions of
configuring Cisco routers for AAA. Part II addresses enterprise AAA management
with CSACS, including installation, configuration, and management details. Part
III looks at service provider AAA management with Cisco Access Registrar.
Full of detailed overviews, diagrams, and step-by-step instructions for
enabling essential access control solutions, Cisco Access Control
Security is a practical tool that can help enforce assigned access policies
and simplify user management.
"This book manages the rare combination of being highly accurate and
technically astute, while maintaining an easy readability and flow. It is a
great guide for system administrators looking to design or manage a reliable,
scalable, and secure Access Control deployment for any size
organization."
-Jeremy Steiglitz, ACS Group Product Manager, Cisco
Systems
This book is part of the Networking Technology Series from Cisco Press, which
offers networking professionals valuable information for constructing efficient
networks, understanding new technologies, and building successful careers.
Table of Contents:
I. AAA OVERVIEW.
1. Authentication, Authorization, and Accounting
Overview.
Authentication Overview. Authentication Example.
Authorization Overview. Authorization Example. Accounting Overview. Connection
Accounting. EXEC Accounting. System Accounting. Command Accounting. Resource
Accounting. Accounting Example. Cisco Device Support for AAA. Summary. End
Notes.
2. TACACS+ and RADIUS.
A Brief Overview of TACACS+. A Brief Overview of
RADIUS. TACACS+ in Detail. TACACS+ Communication. TACACS+ Format and Header
Values. Encrypting TACACS+. TACACS+ Operation. TACACS+ and Authorization.
TACACS+ Accounting. RADIUS in Detail. RADIUS Encryption. RADIUS Authentication
and Authorization. RADIUS Accounting. Summary. End Notes.
3. Authentication Configuration on Cisco
Routers.
Local Authentication. Method Lists.
Authentication Configurations Using Cisco Secure ACS for Windows Server and
Cisco Secure ACS Solution Engine. Debugging Authentication. Authentication
Command References. Summary.
II. ENTERPRISE AAA AND CISCO SECURE ACCESS CONTROL SERVER.
4. Enterprise Authentication Servers.
Cisco Secure Access Control Server Software and
Versions. Cisco Secure ACS for Windows Server Version 2.1. Cisco Secure ACS for
Windows Server Version 2.3. Cisco Secure ACS for Windows Server Version 2.4 and
2.5. Cisco Secure ACS for Windows Server Version 2.6. Cisco Secure ACS for
Windows Server Version 3.0. Cisco Secure ACS for Windows Server Version 3.1.
Cisco Secure ACS for Windows Server Version 3.2. Cisco Secure Solution Engine.
Summary.
5. Deploying Cisco Secure Access Control Server
for Windows Server.
What Is ACS? How to Obtain ACS. Requirements to
Run ACS Version 3.2. Installing ACS. Reinstalling ACS and Using an Existing ACS
Database. Positioning ACS in Your Network. Virtual Private Networks. Wireless
Deployment. Other Deployments. Summary.
6. Getting Familiar with CSACS.
Navigating the HTML Interface. Group Setup.
Shared Profile Components. Network Configuration. System Configuration.
Interface Configuration. Administration Control. External User Database. Reports
and Activity. Online Documentation. Starting Point for Configuring Your Server.
Configuring Your Interface. Advanced Options. Preparing to Add Users. Summary.
7. Configuring User Accounts.
Adding Users to the Database. Adding a New AAA
Client. User Changeable Passwords. Preparing ACS for UCP. Enabling SSL on the
Web Server. Installing the UCP Module. Authenticating Users to a Windows NT/2000
Database. Authentication and Password Options. User Callback and Client IP
Assignment. Advanced Configurations. Configuring Switches. Enable an
Administrative Policy. Summary. End Notes.
8. Configuring User Groups.
Group-Level Configuration of ACS. Configuring
Voice over IP Support. Configuring Time-of-Day Access Settings. PPP Callback
Configuration. Configuring Network Access Restrictions. Configuring the NAR.
Applying a NAR to a User. A Look at Shared Network Access Restrictions. Max
Sessions, Usage Quotas, and Password Aging Rules. Usage Quotas. Password Aging
Rules. IP Assignment and Downloadable ACLs. Downloadable IP ACLs. Using TACACS+
for Group Configuration. Shell Command Authorization Sets. User-Level
Authorization. Summary. End Notes.
9. Managing Network Configurations.
Configuring a Distributed System. Configuring
Network Device Groups. Configuring Proxy Distribution Tables. Using Remote
Accounting. Using Network Device Searches. Creating a Complete Distributed
Network. Client Configuration. Cisco IOS Switches. Cisco Set-Based Switches.
Cisco PIX Firewalls. Cisco 3000 Series VPN Concentrators. Cisco Wireless Access
Points. Troubleshooting Network Configurations. Summary.
10. Configuring Shared Profile Components.
Downloadable ACLs. Creating an ACL. Working with
ACLs After They Are Created. Network Access Restrictions. Working with NARs.
Non-IP-Based NARs. Configuring Network Access Restrictions. Configuration
Details and Tips. Creating a Non-IP-Based NAR. Editing Shared NARs. Deleting a
Shared NAR. Command Authorization Sets. PIX Command Authorization Sets Versus
Shell Command Authorization Sets. Configuration Considerations for Command
Authorization Sets. PIX Firewall Preparation for Command Authorization.
Configuring Shared Profile Components for Command Authorization. Deleting
Command Authorization Sets. Editing Shell Command Authorization Sets.
Configuring the Group Profile. Configuring the User Profile. Testing Command
Authorization. Troubleshooting Extended Configurations. Troubleshooting Existing
Downloadable ACL Configurations. Troubleshooting New NAR Configurations.
Troubleshooting Existing NAR Configurations. Troubleshooting New Command
Authorization Set Configurations. Troubleshooting Existing Command Authorization
Set Configurations. Common Issues of Network Access Restrictions. And Do Not
Forget the Importance of Documentation. Summary.
11. System Configuration.
How Users Interact with Your External Database
Configuration. External Database Configuration. Windows NT/2000. Novell NDS.
Generic LDAP. External ODBC Database. LEAP Proxy RADIUS Server. RADIUS Token
Server. VASCO Token Server. ActivCard Token Server. PassGo Defender Token
Server. CRYPTOCard Token Server. SafeWord Token Server. RSA SecurID Token
Server. Database Group Mappings. Unknown User Policy. Database Replication.
Understanding Database Replication. Replication Versus Backup. Configuring the
Primary Server. Configuring a Secondary Server. Immediate Replication. Backing
Up the Cisco Secure Database. Manual Backups. Scheduled Backups. Canceling a
Scheduled Backup. Recovering ACS from a Backup file. Synchronization of ACS
Devices. Components of Synchronization. accountActions Table. CSDBSync and
accountActions Table Working Together. Preparing for Synchronization. RDBMS
Synchronization Options. Summary. End Notes.
12. Reports and Logging for Windows Server.
ACS Reports. Logging Attributes in ACS Reports.
User-Defined Attributes. Access Device. Network Device Group. Device Command
Set. Filter Information. ExtDB Info. ACS Reports. Accounting Reports. RADIUS
Accounting. VoIP Accounting. Failed Attempts Report. Passed Authentications
Report. Administrative Reports. TACACS+ Administration Report. Logged-In Users
and Disabled Accounts Reports. System Reports. RDBMS Synchronization. Database
Replication. Administration Audit. User Password Changes. ACS Service
Monitoring. Remote Logging with ACS. Configuring the Remote ACS to Send Logging
Information. Disabling Remote Logging. Additional Logs Maintained by ACS.
Configuring Service Log Options. Summary.
13. Exploring TACACS+ Attribute Values.
TACACS+ AV Pairs Overview. Attributes of TACACS+
AV Pairs. acl=. addr=. addr-pool=. autocmd=. callback-dialstring=,
callback-line=, and callback-rotary=. cmd=. cmd-arg=. dns-servers=.
gw-password=. idletime=. inacl#n. inacl=. interface-config#<n>.
ip-addresses=. link-compression=. load-threshold=n. max-links=n. nas-password.
nocallback-verify. noescape=. nohangup=. old-prompts=. outacl=. outacl#n.
pool-def#n. pool-timeout=. ppp-vj-slot-compression=. priv-lvl=. protocol=.
route=. route#n. routing=. rte-ftr-in#n. rte-ftr-out#n. sap-fltr-in#n.
sap-fltr-out#n. sap#n. service=. source-ip=. timeout=. tunnel-id. wins-servers=.
zonelist=. AV Pair Example PPP Network. Applying an ACL to the Dial Interface.
Understanding TACACS+ AV Pairs in the ACS Interface. AV Pair Discussion #2. AV
Pair Discussion #3. AV Pair Discussion #4. AV Pair Discussion #5. Summary.
III. SERVICE PROVIDER AAA AND THE CISCO ACCESS REGISTRAR.
14. Service Provider AAA and the Cisco CNS
Access Registrar.
Service Provider (SP) Model. Service Provider
Challenge. Value Added Services. Cisco CNS Access Registrar. Options of AR. AR's
Architecture. Policy Engine. Extension Points. Extension Point Scripting
Examples. Proxy AAA. AAA. Installation Requirements for AR on Solaris 8.
Installing AR. AR's Subdirectories. Configuring Cisco CNS AR. Summary. End
Notes.
15. Configuring the Cisco Access Registrar.
Using aregcmd to Configure AR. Categories of
aregcmd Commands. Object Commands. Property Commands. Server Commands.
Application Commands. Session Management Commands. AR's Server Object Hierarchy.
Configuring the ACE ISP as a Basic Site. Configuring AR's Administrators.
Configuring the RADIUS Server. Checking the System-Level Defaults. Displaying
the UserLists. Working with Users. Displaying and Configuring UserGroups.
Configuring AAA Clients in AR. Configuring Profiles. Validating and Saving Your
Changes to AR. Testing Your Configuration. Troubleshooting Your Configuration
with trace. Summary. End Notes.
IV. APPENDIX.
Appendix A: RADIUS Attribute Tables.