It is the easiest thing in the world to do but I have set this up for my benefit as an easy step by step guide to installing the Virtualmin setup.
- First Do an update on your os this will install necessary files and file headers so install.sh can download software.
Usually up2date or yum update.
2. Get the install script.
wget http://software.virtualmin.com/gpl/scripts/install.sh
3. Check connection port it may be eth0 or venet0, check output for connection type.
ifconfig
4. Install Virtualmin.
sh install.sh
Virtual min may ask you 2 questions during install if no domain has been set up.
Enter qualified domain. yourmondomain.com
Connection device. see above step, for centos 5 it is venet0.
Useful links.
Virtualmin Troubleshooting