Install tacacs+ by entering the following commands in the terminal:
sudo apt update sudo apt install tacacs+
Description:
TACACS+ authentication daemon
TACACS+ is a protocol (not TACACS or XTACACS) for authentication, authorization and accounting (AAA) services for routers and network devices.
Homepage: http://www.shrubbery.net/tac_plus/
Version: 4.0.4.27a-3
Section: universe/net