Administrator Guide
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.
password — creates a password.
radius-server host — specifies a RADIUS server host.
tacacs-server host — specifies a TACACS+ server host.
aaa reauthenticate enable
Enable re-authentication of user whenever there is a change in the authenticators.
Syntax
aaa reauthenticate enable
To disable the re-authentication option, use the no aaa reauthenticate enable command.
Defaults Disabled
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.11(0.0) Introduced this command.
Usage Information
When an operating system enables to change the user authenticators, the users might access resources and
perform tasks that they do not have authorization.
Once re-authentication is enabled, Dell Networking OS prompts the users to re-authenticate whenever there is a
change in authenticators.
The change in authentication happens when:
• Add or remove an authentication server (RADIUS/TACACS+)
• Modify an AAA authentication/authorization list
• Change to role-only (RBAC) mode
The re-authentication is also applicable for authenticated 802.1x devices. When there is a change in the
authentication servers, the supplicants connected to all the ports are forced to re-authenticate.
Example
Dell(config)#aaa reauthenticate enable
Dell(config)#aaa authentication login vty_auth_list radius
Force all logged-in users to re-authenticate (y/n)?
Dell(config)#radius-server host 192.100.0.12
Force all logged-in users to re-authenticate (y/n)?
access-class
Restrict incoming connections to a particular IP address in a defined IP access control list (ACL).
C9000 Series
Syntax
access-class access-list-name
To delete a setting, use the no access-class command.
Parameters
access-list-name
Enter the name of an established IP Standard ACL.
Security 1457