Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 729
Enabling AAA Authentication, enable
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NOTE: Dell Networking recommends using the none method only as a backup. This method does not authenticate users. The none and enable methods do not work with secure shell (SSH). You can create multiple method lists and assign them to different terminal lines. Enabling AAA Authentication To enable AAA authentication, use the following command. • Enable AAA authentication. CONFIGURATION mode aaa authentication enable {method-list-name | default} method1 [... method4] • default: uses the listed authentication methods that follow this argument as the default list of methods when a user logs in. • method-list-name: character string used to name the list of enable authentication methods activated when a user logs in. • method1 [... method4]: any of the following: RADIUS, TACACS, enable, line, none. If you do not set the default list, only the local enable is checked. This setting has the same effect as issuing an aaa authentication enable default enable command. Enabling AAA Authentication - RADIUS To enable authentication from the RADIUS server, and use TACACS as a backup, use the following commands. 1 Enable RADIUS and set up TACACS as backup. CONFIGURATION mode aaa authentication enable default radius tacacs 2 Establish a host address and password. CONFIGURATION mode radius-server host x.x.x.x key some-password 3 Establish a host address and password. CONFIGURATION mode tacacs-server host x.x.x.x key some-password Examples of the enable commands for RADIUS To get enable authentication from the RADIUS server and use TACACS as a backup, issue the following commands. The following example shows enabling authentication from the RADIUS server. Dell(config)# aaa authentication enable default radius tacacs Radius and TACACS server has to be properly setup for this. Dell(config)# radius-server host x.x.x.x key Dell(config)# tacacs-server host x.x.x.x key To use local enable authentication on the console, while using remote authentication on VTY lines, run the following commands. The following example shows enabling local authentication for console and remote authentication for the VTY lines. Dell(config)# aaa authentication enable mymethodlist radius tacacs Dell(config)# line vty 0 9 Dell(config-line-vty)# enable authentication mymethodlist Security 729
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