Good Morning Sir Falko, I read your Ubuntu 8.04 LTS Xen installation and configuration. I already tested it. Its really good. Can you help me with my server because I have 2 Network Cards for my server and I want to use both network cards for my main server and my virtual guest machines. I tried to configure /etc/network/interfaces on the ubuntu guest machine and added eth1 for another network card config, but whenever I restarted /etc/init.d/networking, it says, the other network card is not existing. What should I change to the Xen configurations to make this work? Thanks! PS: Im sorry I posted it on the other forum category. Joel