sudo apt update && sudo apt upgrade
sudo apt install software-properties-common apt-transport-https
sudo wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] http://download.webmin.com/download/repository sarge contrib"
sudo apt install -y webmin
sudo systemctl entable webmin
sudo systemctl status webmin