1.下载地址
2.通过ftp工具上传到 /home/software目录下
3.解压keepalive
tar -zxvf keepalived-2.0.18.tar.gz
4.进入解压后keepalived目录，使用configure命令配置安装目录与核心配置文件所在位置
./configure --prefix=/usr/local/keepalived --sysconf=/etc
- prefix：keepalived安装的位置
- sysconf：keepalived核心配置文件所在位置，固定位置，改成其他位置则keepalived启动不了，/var/log/messages中会报错
4.1. 配置过程中可能会出现警告信息，如下所示：
*** WARNING - this build will not support IPVS with IPv6\. Please install libnl/libnl-3 dev libraries to support IPv6 with IPVS.
4.2. 安装libnl/libnl-3依赖
yum -y install libnl libnl-devel
4.3. 重新configure一下，此时OK。
5.安装keepalived
make && make install
