Diagnose anything Linux

create the /etc/yum.repos.d/webmin.repo file containing :
[Webmin]
name=Webmin Distribution Neutral
baseurl=http://download.webmin.com/download/yum
enabled=1

You should also fetch and install my GPG key with which the packages are signed, with the command :
rpm --import http://www.webmin.com/jcameron-key.asc

You will now be able to install with the command :
yum install webmin

now from any browser goto
http://ServerYouJustInstalledWebminOn:10000

now you don't need to remember the syntax for a million silly Linux commands