By Vivek Santuka
Cisco's whole, authoritative consultant to Authentication, Authorization, and Accounting (AAA) ideas with CiscoSecure ACS
This is the 1st whole, authoritative, single-source advisor to imposing, configuring, and handling Authentication, Authorization and Accounting (AAA) identification administration with CiscoSecure entry keep an eye on Server (ACS) four and five. Written by means of 3 of Cisco's such a lot skilled CiscoSecure product help specialists, it covers all AAA suggestions (except NAC) on Cisco routers, switches, entry issues, firewalls, and concentrators. It additionally completely addresses either ACS configuration and troubleshooting, together with using exterior databases supported by means of ACS. each one of this book's six sections makes a speciality of particular Cisco units and their AAA configuration with ACS. each one bankruptcy covers configuration syntax and examples, debug outputs with factors, and ACS screenshots. Drawing at the authors' event with a number of thousand help situations in agencies of all types, AAA id administration Security provides pitfalls, warnings, and tips all through. every one significant subject concludes with a pragmatic, hands-on lab situation such as a real-life resolution that has been largely applied by means of Cisco consumers. This booklet brings jointly the most important details that used to be formerly scattered throughout a number of resources. it is going to be necessary to each specialist working CiscoSecure ACS four or five, in addition to all applicants for CCSP and CCIE (Security or R and S) certification.
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Extra info for AAA Identity Management Security
The NAS/NAD can also be any non-Cisco device that complies with RADIUS or TACACS+ standards and that is supported by the AAA server. In an AAA scenario, the AAA client acts as a gateway and forwards all access requests to AAA server on behalf of the end client. The end client, also known as the supplicant, is an entity at one endpoint of a network segment that seeks to be authenticated by the AAA client. After the AAA server receives the request, it verifies it according to the policy configured.
In some cases, a PASS_REPL might be returned to the AAA client. In this case, the server is choosing to ignore the REQUEST and is replacing it with the information returned in the RESPONSE. If the status is set to FOLLOW, this indicates that the AAA server that is sending the RESPONSE wants to have the authorization take place on another server, and this server information is listed in the RESPONSE packet. The AAA client has the option of using this server or simply can treat it as a FAIL. If the status returned is ERROR, this indicates an error on the AAA server.
Cisco Secure Access Control Server and Cisco Secure Access Control System both follow a policy-based model. A policy-based model provides granular approach towards identity management and access control in a network. Along with providing a granular approach towards security, it also provides administrative ease by providing centralized management through Cisco Secure ACS products. Cisco Secure ACS products combines AAA architecture with policy-based control to provide centralized access control management, increased network security with scalability, and flexibility with user productivity gain.