The simplest and best way to get Webmin is to use automatic setup-repos.sh script to configure repositories on your RHEL or Debian derivative systems. It can be done in two easy steps:
curl -o setup-repos.sh https://raw.githubusercontent.com/webmin/webmin/master/setup-repos.sh
sh setup-repos.sh
This script will automatically setup our repository and install our GPG keys on your system, and provide webmin package for installation and easy upgrades in the future. The supported and tested systems are Red Hat Enterprise Linux, Alma, Rocky, Oracle, CentOS Stream, Fedora or Debian, Ubuntu, Kali.
Install
If Webmin repository was setup using our setup-repos.sh as described above then Webmin can be installed as easy as:
RHEL and derivatives
dnf install webmin
Debian and derivatives
apt-get install webmin --install-recommends