This article describes the easiest way to install Webmin. Webmin will be installed using the APT repository. It is applicable to Linux distributions such as Ubuntu 18.04, Ubuntu 16.04, and Debian 9.
 
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 The simple way to install Webmin on Ubuntu 18.04/16.04/Debian 9 is as follows
 
 Add the Webmin repository to Ubuntu 18.04/16.04/Debian 9 system:
 
 sudo apt -y install vim apt-transport-https wget software-properties-common
 
 sudo add-apt-repository "deb [arch=amd64] http://download.webmin.com/download/repository sarge contrib"
 
 After adding the repository, import the GPG key used to sign the package in the repository:
 
 wget -q http://www.webmin.com/jcameron-key.asc -O- | sudo apt-key add-
 
 Then update the Ubuntu 18.04/16.04/Debian 9 system and install the Webmin package:
 
 sudo apt update
 
 sudo apt -y install webmin
 
 If the installation goes well, the following information will be returned:
 
 Webmin install complete. You can now login to https://<ServerIP|Hostname>:10000/
 
 as root with your root password, or as any user who can use sudo
 
 to run commands as root.
 
 Processing triggers for systemd (232-25+deb9u6) ...
 
 Note: If there is an active UFW firewall service in the system, please allow port 10000:
 
 sudo ufw allow 10000
 
  
 
Access the Webmin interface
 
 Now that Webmin has been installed on Ubuntu 18.04/16.04/Debian 9 system, open your 
server URL/IP address port 10000, for example https://192.168.17.51:10000:
 
 
 Log in with the server administrator user account to manage the system from the web interface:
 
 Attachment: Webmin module example
 
 
Attachment: Webmin module example
 
 BIND DNS 
server: Create and edit domains, DNS records, BIND options and views.
 
 BSD firewall: Use IPFW to configure BSD firewall by creating and editing rules.
 
 DHCP server: Manage the shared network, subnet, host and group of the ISC DHCPD.
 
 CD burning: burn an ISO image or a data CD in a selected directory.
 
 File manager: Use a Windows-like file manager to view, edit and change the permissions of files and directories on the system.
 
 Dovecot IMAP/POP3 server: Configure Dovecot IMAP and POP3 mail retrieval 
server.
 
 LDAP server: Manage all operating systems of the OpenLDAP server and objects in its database.
 
 MySQL database server: Set up databases, tables and permissions in the 
MySQL database server.
 
 Linux RAID: Create RAID 0,1,4,5,6,10 and linear devices on Linux systems.
 
 SSL certificate: Encrypt SSL certificate request.
 
 IPsec VPN configuration: Use FreeSWAN to set up a client or server for IPsec VPN.