43SecurityThis chapter describes several ways to provide security to the Dell Networking system.For details about all the commands described in this chapter, refer to the Security chapter in the DellNetworking OS Command Reference Guide.AAA AccountingAccounting, authentication, and authorization (AAA) accounting is part of the AAA security model.For details about commands related to AAA security, refer to the Security chapter in the Dell NetworkingOS Command Reference Guide.AAA accounting enables tracking of services that users are accessing and the amount of networkresources being consumed by those services. When you enable AAA accounting, the network serverreports user activity to the security server in the form of accounting records. Each accounting recordcomprises accounting attribute/value (AV) pairs and is stored on the access control server.As with authentication and authorization, you must configure AAA accounting by defining a named list ofaccounting methods and then applying that list to various virtual terminal line (VTY) lines.Configuration Task List for AAA AccountingThe following sections present the AAA accounting configuration tasks.• Enabling AAA Accounting (mandatory)• Suppressing AAA Accounting for Null Username Sessions (optional)• Configuring Accounting of EXEC and Privilege-Level Command Usage (optional)• Configuring AAA Accounting for Terminal Lines (optional)• Monitoring AAA Accounting (optional)Enabling AAA AccountingThe aaa accounting command allows you to create a record for any or all of the accounting functionsmonitored.To enable AAA accounting, use the following command.• Enable AAA accounting and create a record for monitoring the accounting function.CONFIGURATION modeaaa accounting {commands | exec | suppress | system level} {default | name}{start-stop | wait-start | stop-only} {tacacs+}The variables are:– system: sends accounting information of any other AAA configuration.Security 771
