914 | Security
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Configuration Task List for AAA Accounting
The following sections present the AAA Accounting configuration tasks:
• Enable AAA Accounting on page 914 (mandatory)
• Suppress AAA Accounting for null username sessions on page 915 (optional)
• Configure Accounting of EXEC and privilege-level command usage on page 915 (optional)
• Configure AAA Accounting for terminal lines on page 915 (optional)
• Monitor AAA Accounting on page 915 (optional)
Enable AAA Accounting
The aaa accounting command enables you to create a record for any or all of the accounting functions 
monitored. To enable AAA accounting, perform the following task in CONFIGURATION mode: 
Command Syntax Command Mode Purpose
aaa accounting {system |  exec | 
command level} {default | name} 
{
start-stop | wait-start | stop-only} 
{
tacacs+}
CONFIGURATION Enable AAA Accounting and create a record for 
monitoring the accounting function.
The variables are:
• system—sends accounting information of any 
other AAA configuration
• exec—sends accounting information when a user 
has logged in to the EXEC mode
• command level—sends accounting of commands 
executed at the specified privilege level
• default | name—Enter the name of a list of 
accounting methods.
• start-stop—Use for more accounting information, 
to send a start-accounting notice at the beginning 
of the requested event and a stop-accounting 
notice at the end.
• wait-start—ensures that the TACACS+ security 
server acknowledges the start notice before 
granting the user's process request
• stop-only—Use for minimal accounting; instructs 
the TACACS+ server to send a stop record 
accounting notice at the end of the requested user 
process.
• tacacs+ —Designate the security service. 
Currently, FTOS supports only TACACS+