yum (CentOS/RedHat/Fedora)
By adding the Webmin repository and Jamie Cameron’s key, it is possible to install & maintain the latest Webmin/Usermin versions.
The following will install the latest Webmin version by adding the webmin-repo and corresponding GPG key. Yum will resolve all the necessary dependancies.
Just Cut&Paste the entire text below and hit enter/return:
(echo "[Webmin] name=Webmin Distribution Neutral baseurl=http://download.webmin.com/download/yum enabled=1 gpgcheck=1 gpgkey=http://www.webmin.com/jcameron-key.asc" >/etc/yum.repos.d/webmin.repo; yum -y install webmin)