在CentOS 6.3 下安装 ipvsadm 1.26.1 & keepalived 1.2.5

lvsipvsipvsadmkeepalived

IPVS (IP Virtual Server) implements transport-layer load balancing inside the Linux kernel, so called Layer-4 switching. IPVS running on a host acts as a load
balancer at the front of a cluster of real servers, it can direct requests for TCP/UDP based services to the real servers, and makes services of the real servers to appear as a virtual service on a single IP address.

1：get ipvsadm from http://www.linuxvirtualserver.org/software/ipvs.html#kernel-2.6

2: install kernel-devel ,ln -s /usr/src/kernel/xxxxx /usr/src/linux

3: popt-devel , libnl-devel, popt-static

4: install ipvsadm make && make install

or

yum install ipvsadm

detail info : http://kb.linuxvirtualserver.org/wiki/Compiling_ipvsadm_on_different_Linux_distributions

在 安装 keepalived出错时，同样需要执行【2、3】