Keepalived: 运行在 LVS 之上的故障转移负载均衡器(fault tolerant load-balancer)
Official Site:
http://www.keepalived.org/
备忘：
linux下配置文件所在： /etc/keepalived/keepalived.conf
VRRP：Virtual Router Redundancy Protocol
LVS： Linux Virtual Server (http://www.linuxvirtualserver.org/)
IPVS: IP Virtual Server
介绍基于LVS及Keepalived的负载均衡及服务器集群的中文pdf(即附件)：
http://www.keepalived.org/pdf/sery-lvs-cluster.pdf
Deploying Highly Available Virtual Interfaces With Keepalived：
http://prefetch.net/articles/linuxkeepalivedvrrp.html
