Users Guide

Command Modes CONFIGURATION
Supported Modes All Modes
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
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 congured username password is used. If you congure aaa authentication login
default, Dell Networking Operating System (OS) uses the methods this command denes for login instead.
Methods congured with the aaa authentication login command are evaluated in the order they are
congured. If users encounter an error with the rst method listed, Dell Networking Operating System (OS) applies
the next method congured. If users fail the rst 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 conguring the aaa authentication login command, congure 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 — species a RADIUS server host.
tacacs-server host — species a TACACS+ server host.
banner exec
Congure 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
Security 315