Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 806
TACACS+, Configuration Task List for TACACS+, Choosing TACACS+ as the Authentication Method
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TACACS+ Dell EMC Networking OS supports terminal access controller access control system (TACACS+ client, including support for login authentication. Configuration Task List for TACACS+ The following list includes the configuration task for TACACS+ functions. • Choosing TACACS+ as the Authentication Method • Monitoring TACACS+ • TACACS+ Remote Authentication • Specifying a TACACS+ Server Host For a complete listing of all commands related to TACACS+, refer to the Security chapter in the Dell EMC Networking OS Command Reference Guide. Choosing TACACS+ as the Authentication Method One of the login authentication methods available is TACACS+ and the user's name and password are sent for authentication to the TACACS hosts specified. To use TACACS+ to authenticate users, specify at least one TACACS+ server for the system to communicate with and configure TACACS+ as one of your authentication methods. To select TACACS+ as the login authentication method, use the following commands. 1 Configure a TACACS+ server host. CONFIGURATION mode tacacs-server host {ip-address | host} Enter the IP address or host name of the TACACS+ server. Use this command multiple times to configure multiple TACACS+ server hosts. 2 Enter a text string (up to 16 characters long) as the name of the method list you wish to use with the TACAS+ authentication method. CONFIGURATION mode aaa authentication login {method-list-name | default} tacacs+ [...method3] The TACACS+ method must not be the last method specified. 3 Enter LINE mode. CONFIGURATION mode line {aux 0 | console 0 | vty number [end-number]} 4 Assign the method-list to the terminal line. LINE mode login authentication {method-list-name | default} Example of a Failed Authentication To view the configuration, use the show config in LINE mode or the show running-config tacacs+ command in EXEC Privilege mode. If authentication fails using the primary method, Dell EMC Networking OS employs the second method (or third method, if necessary) automatically. The fallback to the second method would happen only if the authentication failure is due to a non-reachable server or invalid 806 Security
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