Install login-duo by entering the following commands in the terminal:
sudo apt update sudo apt install login-duo
Description:
login wrapper for Duo Security two-factor authentication
This provides the login wrapper needed to interact with the Duo Security API for handling out-of-band two-factor authentication, mostly designed to be used along with global OpenSSH server configurations. Also includes manpage and configuration.
Homepage: https://github.com/duosecurity/duo_unix
Version: 1.9.21-1build1
Section: universe/admin