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Accessing the I/O Aggregator Using the CMC Console
Only
This functionality is supported on the Aggregator.
You can enable the option to access and administer an Aggregator only using the chassis management controller (CMC)
interface, and prevent the usage of the CLI interface of the device to configure and monitor settings. You can configure the
restrict-access session command to disable access of the Aggregator using a Telnet or SSH session; the device is accessible
only using the CMC GUI. You can use the no version of this command to reactivate the Telnet or SSH session capability for the
device. Use the show restrict-access command to view whether the access to a device using Telnet or SSH is disabled or not.
AAA Accounting
Accounting, authentication, and authorization (AAA) accounting is part of the AAA security model.
For details about commands related to AAA security, refer to the Security chapter in the Dell EMC Networking OS Command
Reference Guide.
AAA accounting enables tracking of services that users are accessing and the amount of network resources being consumed by
those services. When you enable AAA accounting, the network server reports user activity to the security server in the form
of accounting records. Each accounting record comprises accounting attribute/value (AV) pairs and is stored on the access
control server.
As with authentication and authorization, you must configure AAA accounting by defining a named list of accounting methods
and then applying that list to various virtual terminal line (VTY) lines.
Configuration Task List for AAA Accounting
The following sections present the AAA accounting configuration tasks.
● Enabling AAA Accounting (mandatory)
● Suppressing AAA Accounting for Null Username Sessions (optional)
● Configuring Accounting of EXEC and Privilege-Level Command Usage (optional)
● Configuring AAA Accounting for Terminal Lines (optional)
● Monitoring AAA Accounting (optional)
Enabling AAA Accounting
The aaa accounting command allows you to create a record for any or all of the accounting functions monitored.
To enable AAA accounting, use the following command.
● Enable AAA accounting and create a record for monitoring the accounting function.
CONFIGURATION mode
aaa accounting {commands level | dot1x | exec | rest | suppress | system} {default |
name} {start-stop | wait-start | stop-only} {radius | tacacs+}
The variables are:
○ system: sends accounting information of any other AAA configuration.
○ exec: sends accounting information when a user has logged in to EXEC mode.
○ dot1x: sends accounting information when a dot1x user has logged in to EXEC mode.
○ command level: sends accounting of commands executed at the specified privilege level.
○ suppress: Do not generate accounting records for a specific type of user.
○ 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.
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Security