TACACS+ authentication tasks

The TACACS+ authentication-related tasks are as follows. Simple tasks link to the relevant command description.

Task	Command or procedure	Example
Configuring the authentication sequence for the default connection type	`aaa authentication login`	`aaa authentication login default group tg1 tg2 tacacs local`
Configuring the authentication sequence for the console connection type	`aaa authentication login`	`aaa authentication login console group tg2 tg3 tacacs local`
Configuring the authentication sequence for the ssh connection type	`aaa authentication login`	`aaa authentication login ssh group tg2 tacacs local`
Removing remote AAA for the default connection type	`aaa authentication login`	`no aaa authentication login default`
Configuring authentication fail-through	`aaa authentication allow-fail-through`	`aaa authentication allow-fail-through no aaa authentication allow-fail-through`
Showing the authentication sequence	`show aaa authentication`	`show aaa authentication`