Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 857
Monitor AAA Accounting, Con Accounting of EXEC and privilege-level command usage
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Suppress AAA Accounting for null username sessions When AAA Accounting is activated, the FTOS software issues accounting records for all users on the system, including users whose username string, because of protocol translation, is NULL. An example of this is a user who comes in on a line where the AAA Authentication login method-list none command is applied. To prevent accounting records from being generated for sessions that do not have usernames associated with them, perform the following task in CONFIGURATION mode: Command Syntax Command Mode Purpose aaa accounting suppress null-username CONFIGURATION Prevent accounting records from being generated for users whose username string is NULL Configure Accounting of EXEC and privilege-level command usage The network access server monitors the accounting functions defined in the TACACS+ attribute/value (AV) pairs. In the following sample configuration, AAA accounting is set to track all usage of EXEC commands and commands on privilege level 15. FTOS(conf)#aaa accounting exec default start-stop tacacs+ FTOS(conf)#aaa accounting command 15 default start-stop tacacs+ System accounting can use only the default method list: aaa accounting system default start-stop tacacs+ Configure AAA Accounting for terminal lines Use the following commands to enable accounting with a named method list for a specific terminal line (where com15 and execAcct are the method list names): FTOS(config-line-vty)# accounting commands 15 com15 FTOS(config-line-vty)# accounting exec execAcct Monitor AAA Accounting FTOS 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, perform the following task in Privileged EXEC mode: Command Syntax Command Mode Purpose show accounting CONFIGURATION Step through all active sessions and print all the accounting records for the actively accounted functions. Security | 857
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