LinuxTechi - https://www.linuxtechi.com/install-configure-webmin-debian-9-ubuntu-server/
Webmin is web based interface for managing UNIX systems. It provides simple yet powerful web interface and allows you to manage entire system via this interface. It is supported on wide ranges of UNIX variants like Linux, Solaris, FreeBSD and so on.
One of the good thing about webmin is that it is released under BSD 3-clause license, which is very liberal. You are free to use it for personal as well as commercial purpose.
Installation of Webmin
Installation of Webmin is as simple as other software installation on Linux. In this section we’ll discuss steps to perform installation