Register Xen Host
This page allows you to tell Cloudmin that an existing system it manages is suitable for hosting Xen instances. To do this, the following fields must be filled in :

System hosting Xens
From the menu you must select a physical system that has the software installed and kernel version required to run Xen. Cloudmin does not yet have the ability to install these packages automatically.
Base directory for virtual systems
Here you must enter a directory under which Xen instances will be created, which must already exist on the selected host system. Because Xen instances use a large amount of disk space (2GB or more each), you should choose a local directory with plenty of space.
Add Xen systems to DNS domain
If the master Cloudmin system runs a DNS server, this field will show a menu of local DNS domains to which the hostname of newly created Xen instances will be added. It is highly recommended that you setup a DNS server and make sure it can be managed through Webmin before using Xen and Cloudmin, so that new instances will have resolvable hostnames.
IP address allocation range
When a Xen instance is created, Cloudmin can assign an IP address for it automatically. The IP will be taken from the range you enter in this field, by finding addresses that are not in use by any other virtual system and do not respond to pings.