Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 791

Example of Configuring AAA Accounting to Track EXEC and EXEC Privilege Level Command Use In the following sample configuration, AAA accounting is set to track all usage of EXEC commands and commands on privilege level 15. DellEMC(conf)#aaa accounting exec default start-stop tacacs+ DellEMC(conf)#aaa accounting command 15 default start-stop tacacs+ Configuring AAA Accounting for Terminal Lines To enable AAA accounting with a named method list for a specific terminal line (where com15 and execAcct are the method list names), use the following commands. • Configure AAA accounting for terminal lines. CONFIG-LINE-VTY mode accounting commands 15 com15 accounting exec execAcct Example of Enabling AAA Accounting with a Named Method List DellEMC(config-line-vty)# accounting commands 15 com15 DellEMC(config-line-vty)# accounting exec execAcct Monitoring AAA Accounting Dell EMC Networking OS does not support periodic interim accounting because the periodic command can cause heavy congestion when many users are logged in to the network. No specific show command exists for TACACS+ accounting. To obtain accounting records displaying information about users currently logged in, use the following command. • Step through all active sessions and print all the accounting records for the actively accounted functions. CONFIGURATION mode or EXEC Privilege mode show accounting Example of the show accounting Command for AAA Accounting DellEMC#show accounting Active accounted actions on tty2, User admin Priv 1 Task ID 1, EXEC Accounting record, 00:00:39 Elapsed, service=shell Active accounted actions on tty3, User admin Priv 1 Task ID 2, EXEC Accounting record, 00:00:26 Elapsed, service=shell DellEMC# AAA Authentication Dell EMC Networking OS supports a distributed client/server system implemented through authentication, authorization, and accounting (AAA) to help secure networks against unauthorized access. In the Dell EMC Networking implementation, the Dell EMC Networking system acts as a RADIUS or TACACS+ client and sends authentication requests to a central remote authentication dial-in service (RADIUS) or Terminal access controller access control system plus (TACACS+) server that contains all user authentication and network service access information. Dell EMC Networking uses local usernames/passwords (stored on the Dell EMC Networking system) or AAA for login authentication. With AAA, you can specify the security protocol or mechanism for different login methods and different users. In Dell EMC Networking OS, AAA uses a list of authentication methods, called method lists, to define the types of authentication and the sequence in which they are applied. You can define a method list or use the default method list. User-defined method lists take precedence over the default method list. Security 791