Administrator Guide

... method4 (OPTIONAL) Enter up to four additional methods. In the event of a “no response”
from the first method, Dell Networking Operating System (OS) applies the next
configured method (up to four configured methods).
Defaults Not configured (that is, no authentication is performed).
Command Modes CONFIGURATION
Supported Modes All Modes
Command
History
Version Description
9.4(0.0) Supported on the FN I/O Aggregator.
9.3(0.0) Supported on the M I/O Aggregator.
Usage
Information
By default, the locally configured username password is used. If you configure aaa authentication
login default, Dell Networking Operating System (OS) uses the methods this command defines for
login instead.
Methods configured with the aaa authentication login command are evaluated in the order they
are configured. If users encounter an error with the first method listed, Dell Networking Operating System
(OS) applies the next method configured. If users fail the first method listed, no other methods are
applied. The only exception is the local method. If the user’s name is not listed in the local database, the
next method is applied. If the correct user name/password combination is not entered, the user is not
allowed access to the switch.
NOTE: If authentication fails using the primary method, Dell Networking Operating System (OS)
employs the second method (or third method, if necessary) automatically. For example, if the
TACACS+ server is reachable, but the server key is invalid, Dell Networking Operating System (OS)
proceeds to the next authentication method. The TACACS+ is incorrect, but the user is still
authenticated by the secondary method.
After configuring the aaa authentication login command, configure the login
authentication command to enable the authentication scheme on terminal lines.
Connections to the SSH server work with the following login mechanisms: local, radius, and tacacs.
Related
Commands
login authentication — enables AAA login authentication on the terminal lines.
radius-server host — specifies a RADIUS server host.
tacacs-server host — specifies a TACACS+ server host.
banner exec
Configure a message that is displayed when your enter EXEC mode.
Syntax
banner exec c line c
To delete a banner, use the no banner exec command.
Parameters
c Enter the keywords banner exec, then enter a character delineator, represented
here by the letter c. Press ENTER.
line Enter a text string for your banner message ending the message with your
delineator. In the following example, the delineator is a percent character (%); the
banner message is “testing, testing”.
Defaults No banner is displayed.
Command Modes CONFIGURATION
Supported Modes All Modes
Security 261