xen安装及配置笔记
Xen虚拟机有两种运行方式：完全虚拟化（full virtualization）和半虚拟化（para virtualization）。
完全虚拟化提供底层物理系统的全部抽象化，且创建一个新的虚拟系统，客户机操作系统可以在里面运行。不需要对客户机操作系统或者应用程序进行修改.
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Multiple network cards and bridges in Xen[zz]
XEN下的多网桥配置, 这篇文章写得比较清楚了
Using multiple network cards associated to different bridges in Xen is quite easy. By default Xen uses ony one bridge.
Create custom network-script which works as a wrapper and calls network-bridge from it.
/etc/xen/scripts/multi-network-bridge:
(for Xen 3.1 and earlier)
#!/bin/sh
dir=$(dirname “$0″)
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