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Example of Enabling AAA Accounting with a Named Method List
Dell(config-line-vty)# accounting commands 15 com15
Dell(config-line-vty)# accounting exec execAcct
Monitoring AAA Accounting
The system 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
Dell#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
Dell#
AAA Authentication
The system supports a distributed client/server system implemented through authentication,
authorization, and accounting (AAA) to help secure networks against unauthorized access.
In the Dell Networking implementation, the switch 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 Networking uses local usernames/passwords (stored on the Dell 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 the Dell 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.
NOTE: If a console user logs in with RADIUS authentication, the privilege level is applied from the
RADIUS server if the privilege level is configured for that user in RADIUS, whether you configure
RADIUS authorization.
Configuration Task List for AAA Authentication
The following sections provide the configuration tasks.
• Configure Login Authentication for Terminal Lines
Security
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