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文件: /usr/share/help/C/gnome-boxes/supported-protocols.page
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<page xmlns="http://projectmallard.org/1.0/" type="topic" style="task" id="supported-protocols"> <info> <revision pkgversion="3.8.0" date="2013-03-25" status="candidate"/> <revision pkgversion="3.14.0" date="2014-09-13" status="review"/> <link type="guide" xref="index#faq"/> <credit type="author copyright"> <name>Michael Hill</name> <email>mdhillca@gmail.com</email> <years>2012</years> </credit> <credit type="author copyright"> <name>Baptiste Mille-Mathias</name> <email>baptistem@gnome.org</email> <years>2012</years> </credit> <include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/> <desc></desc> </info> <title>What is the technology used by Boxes?</title> <comment> <cite date="2012-04-06" href="mailto:mdhillca@gmail.com">Michael Hill</cite> <p>This assumes the reader knows how to launch Boxes. By the end of this page, the reader will be able to recite the names of a number of virtualization tools.</p> </comment> <p>Boxes uses <app>qemu-kvm</app>, <app>libvirt-glib</app> and <app>spice-gtk</app> to allow users to easily manage virtual machines and connect to remote machines.</p> <section id="qemu-kvm"> <title>QEMU with KVM</title> <p><app>QEMU</app> is a machine emulator and virtualizer. As a machine emulator, it can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). As a virtualizer, QEMU achieves near native performance by executing the guest code directly on the host CPU using KVM.</p> <p><app>KVM</app> (Kernel-based Virtual Machine) is a Linux kernel module that allows a user space program to use the hardware virtualization features of various processors.</p> </section> <section id="libvirt"> <title>libvirt</title> <p><app>libvirt</app> is a toolkit for manipulating (creating, deleting and modifying) and monitoring virtual machines on remote hosts, securely.</p> <p><app>libvirt-glib</app> wraps libvirt to provide a high-level object-oriented API suited for glib-based applications.</p> </section> <section id="spice"> <title>SPICE</title> <p><app>SPICE</app>, the Simple Protocol for Independent Computing Environments, is a system for accessing and controlling remote desktops across a network.</p> <p>The SPICE server is a library that runs inside the QEMU binary. It is mainly responsible for authentication of client connections, relaying of graphics output of the guest OS to the client and relaying of user input (mouse and keyboard) from client to guest.</p> <p><app>spice-gtk</app> is the SPICE client that provides a view into the guest OS.</p> </section> <section id="vnc"> <title>VNC</title> <p><app>VNC</app>, Virtual Network Computing, used only for remote display, is a well know protocol but quite limited and slow.</p> </section> </page>
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