How to Install Webmin on Ubuntu 18.04

Webmin.sh

#!/bin/bash

sudo apt update
sudo apt install software-properties-common apt-transport-https wget
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 webmin
#Webmin install complete. You can now login to https://your_server_ip_or_hostname:10000/ as root with your root password, or as any user who can use sudo to run commands as root.

#Adjust the Firewall
sudo ufw allow 10000/tcp

#Accessing Webmin Web Interface
https://your_server_ip_or_hostname:10000/

sudo apt update
sudo apt upgrade