In this article, I’ll describe how to set up a self-managed Xen cluster, which may or may not be a part of a larger network. Critically, the Xen cluster will minimize any security holes and be a well-behaved netizen. Security, authentication, and authorization will be maintained by Kerberos, ssh, and LDAP, while ebtables will stop any possible pollution of the external network.
Many Linux distributions now support Xen, among the most recent are Fedora Core 5, RedHat Linux 5 , and Novell. FC5 makes it particularly easy to set up Xen, and I will focus on that distribution. However, all the configurations are generic.