Install whowatch by entering the following commands in the terminal:
sudo apt update sudo apt install whowatch
Description:
Real-time user logins monitoring tool
whowatch is a ncurses who-like utility that displays information about the users currently logged on to the machine, in real-time. Besides standard information (login name, tty, host, user's process), the type of the connection (ie. telnet or ssh) is shown.
Homepage: http://wizard.ae.krakow.pl/~mike/#whowatch
Version: 1.8.5-1build1
Section: universe/admin