i would like to use lvs to load balance several firewall/vpn boxes. after reading all the excellent documentation on this project i have learnt that in most of the cases lvs is used to do load sharing between a bunch of servers, so you usually have only one lvs director (or 2 for failover) in front of your server cluster.
doing load balancing between firewalls/vpn boxes would require a slightly different setup: one director in front of the cluster and one behind. ok, lets have some ascii art to illustrate this:
________
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| host A |
|________| on the internet
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尊敬的章博士：
您好，我们知道在LVS下实现动态反馈负载均衡机制可以帮助避免服务器间的负载不均衡，feedbackd它是一个开源的软件包，请问可以在一个在Mandrive下(或其他基于某一内核版本的linux下)编译成功吗？feedbackd这个监控工具采集的服务器负载数据具体是什么（是服务器当前CPU负载，服务器当前磁盘使用情况，当前进程数目还是？），来实现动态反馈负载的。
Red Hat Piranha工具也可以来监控和收集信息，请问Piranha是如何实现采集服务器的CPU负载数据的？
