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Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

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Configuring Login Authentication for Terminal Lines

You can use any combination of up to six authentication methods to authenticate a user on a terminal line.

A combination of authentication methods is called a method list. If the user fails the first authentication method, the system prompts the next method until all methods are exhausted, at which point the connection is terminated. The available authentication methods are:
enable Prompt for the enable password.
line Prompt for the password you assigned to the terminal line. Configure a password for the terminal line to which you assign a method list that contains the line authentication method. Configure a password using the password command from LINE mode.
local Prompt for the system username and password.
none Do not authenticate the user.
radius Prompt for a username and password and use a RADIUS server to authenticate.
tacacs+ Prompt for a username and password and use a TACACS+ server to authenticate.
  1. Configure an authentication method list. You may use a mnemonic name or use the default keyword. The default authentication method for terminal lines is local and the default method list is empty. CONFIGURATION mode aaa authentication login { method-list-name | default} [ method-1] [ method-2] [ method-3] [ method-4] [ method-5] [ method-6]
  2. Apply the method list from Step 1 to a terminal line. CONFIGURATION mode login authentication { method-list-name | default}
  3. If you used the line authentication method in the method list you applied to the terminal line, configure a password for the terminal line. LINE mode password

Example of Terminal Line Authentication

In the following example, VTY lines 0-2 use a single authentication method, line. 

Dell(conf)#aaa authentication login myvtymethodlist line
                                 Dell(conf)#line vty 0 2
                                 Dell(config-line-vty)#login authentication myvtymethodlist
                                 Dell(config-line-vty)#password myvtypassword
                                 Dell(config-line-vty)#show config
                                 line vty 0
                                 password myvtypassword
                                 login authentication myvtymethodlist
                                 line vty 1
                                 password myvtypassword
                                 login authentication myvtymethodlist
                                 line vty 2
                                 password myvtypassword
                                 login authentication myvtymethodlist
                                 Dell(config-line-vty)#

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