
Configuring TACACS+ server authentication.

These attributes can be either: Specified in the tac_nf file by using regular expressions to list all the commands that the user has permitted or denied.Configuring RADIUS server authentication.
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default tacacs+ local aaa authentication ppp default tacacs+ enable password cisco ! chat-script cisco-default ABORT ERROR "" "AT Z" OK "ATDT \T" TIMEOUT 30 \c CONNE CT \c ! interface Ethernet0 ip address 200.200.200.102 use TACACS+ for role-based access control, run following CLI commands to configure authentication and authorization methods: Arista (config)#aaa authentication login default group tacacs+ local Arista (config)#aaa authorization exec default group tacacs+ local Arista (config)#aaa authorization commands all default localWhen authenticating users against a TACACS+ server on juniper devices and you'll need to apply Juniper Networks Vendor-Specific TACACS+ Attributes. To configure TACACS+ authentication at login on all lines on a 16-port NAS, enter the following commands.
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First the PC user “Bob” sends an Authentication request to the Switch, which uses its first Auth method in line, the TACACS+ Server: If TACACS+ doesn’t respond or doesn’t know Bob, it will continue left to right with the Auth methods, until Bob can Authenticate or not – TACACS+ doesn’t stop Auth HERE.show aaa authentication Displays configured authentication information. show tacacs−server Displays the TACACS+ server configuration.These are the basic configuration of AAA and TACACS on a Cisco Router aaa new-model aaa authentication login default group tacacs+ local aaa authorization exec default group tacacs+ local! tacacs server prod address ipv4 10.106.60.182Use the commands in this section in order to verify the TACACS+ server configuration: If an ERROR response is received, the router typically tries to use an alternative method to authenticate the user. If this doesn’t work, restart your computer and try again.

Once in elevated command prompt, execute the following command: After executing the command, try connecting again.
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AAA server configuration on Packet Tracer,Configure authentication, authorization, and accounting schemes.

Make sure service state is selected as 'on' as shown below screenshot. Next click on the server icon and click on service and then click on AAA tab. Switch (config-line )# login authentication myauth, On the packet tracer, you need to add a generic server to the switch and set the IP to 10.1.1.10.
