This is an old revision of the document!
A web interface to XenServer…
https://xen-orchestra.com
http://xapi-project.github.io/getting-started/architecture.html
It is free to build the XOA appliance yourself with additional features:
https://github.com/hackmods/autoXOA
https://xen-orchestra.com/docs/xoa.html
https://xen-orchestra.com/blog/improving-security-in-xen-orchestra/
https://xen-orchestra.com/docs/troubleshooting.html