managerComp is an application used to monitor and manage Ice components (http://www.zeroc.com) under GNU/Linux environments. It displays the components, their states and dependences using a graph view.
Xen is a virtual machine monitor for x86 that supports execution of multiple guest operating systems with unprecedented levels of performance and resource isolation. Linux 2.4, 2.6 and NetBSD 2.0 ports are available. FreeBSD, Plan 9 ports on the way.