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Monitoring AAA Accounting
Dell 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
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
Dell 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 Networking implementation, the Dell 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 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 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
● Configuring AAA Authentication Login Methods
● Enabling AAA Authentication
● Enabling AAA Authentication — RADIUS
For a complete list of all commands related to login authentication, refer to the Security chapter in the Dell Networking OS
Command Line Reference Guide.
Configure Login Authentication for Terminal Lines
You can assign up to five authentication methods to a method list. Dell Networking OS evaluates the methods in the order in
which you enter them in each list.
If the first method list does not respond or returns an error, Dell Networking OS applies the next method list until the user either
passes or fails the authentication. If the user fails a method list, Dell Networking OS does not apply the next method list.
Security
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