By Vivek Santuka
Cisco's entire, authoritative consultant to Authentication, Authorization, and Accounting (AAA) suggestions with CiscoSecure ACS
This is the 1st whole, authoritative, single-source consultant to enforcing, configuring, and coping with Authentication, Authorization and Accounting (AAA) identification administration with CiscoSecure entry keep watch over Server (ACS) four and five. Written through 3 of Cisco's so much skilled CiscoSecure product help specialists, it covers all AAA recommendations (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 via ACS. every 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 motives, and ACS screenshots. Drawing at the authors' adventure with numerous thousand help situations in corporations of all types, AAA identification administration Security provides pitfalls, warnings, and information all through. each one significant subject concludes with a pragmatic, hands-on lab situation resembling a real-life resolution that has been greatly applied through Cisco consumers. This publication brings jointly an important details that was once formerly scattered throughout a number of assets. will probably be essential to each specialist operating 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 resources for AAA Identity Management Security
You will see in more detail how you can use the features available in both products for everyday security for wired and wireless network access, along with network administration to provide more secure and robust network security architecture. The sections that follow delve into the installation of Cisco Secure Access Control Server and Cisco Secure Access Control System. 2 As discussed previously, Cisco Secure Access Control Server is available in two platforms: ■ Cisco Secure Access Control Server for Windows ■ Cisco Secure Access Control Server Solution Engine The sections that follow look at the installation steps for both Windows and Solution Engine as well as cover a few common problems encountered during installation or upgrade, and the best practices to avoid them.
Session_id: This is a random value that designates the current session between the AAA client and the AAA server running the TACACS+ daemon. This value remains the same for the duration of a session. ■ Length: This field states the total length of the TACACS+ packet, not to include the 12-byte header. Encrypting TACACS+ One feature that provides more security under TACACS+, as opposed to its alternative RADIUS, is the encryption of the entire packet. This encryption is sent between the AAA client and the AAA server running the TACACS+ daemon.
Authorization is the second module of the AAA framework. The following steps are needed for authorization to take place: Step 1. AAA assembles a set of attributes based on the services that a user is requesting authorization to perform. Step 2. These attributes are compared against a database that contains the user’s actual permissions. Step 3. After a user’s authorization is verified or not verified, the result is returned to the AAA process. Step 4. After the preceding step sequence, the AAA process is then able to impose the proper restrictions to the user data.