Install gnome-nettool by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-nettool
Description:
network information tool for GNOME
GNOME Nettool is a network information tool which provides user interfaces for some of the most common command line network tools including: * ifconfig * ping * netstat * traceroute * port scanning * DNS lookup * finger * whois
Homepage: http://projects.gnome.org/gnome-network/
Version: 3.8.1-2
Section: universe/gnome