一、安装
1、下载tar.gz包：http://keepalived.org
2、上传到linux服务器里并解压
alt+p进入到SFTP：put E:\DevelopSoftware\linux\keepalived-1.2.19.tar.gz
默认会把nginx的包上传到/root下
tar -zxvf keepalived-1.2.19.tar.gz -C /usr/local/src/ 解压并解包到 /usr/local/src/ 目录下（约定俗成）
3、进入到 /usr/local/src/keepalived-1.2.19 ，执行
./configure --prefix=/usr/local/keepalived
4、安装和编译
make && make install
二、配置
将keepalived添加到系统服务中
1、拷贝执行文件(启动脚本)
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
2、将init.d 文件拷贝到etc下，加入开机启动项（初始化脚本）
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived
3、将 keepalived 文件拷贝到etc下（配置文件）
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
4、创建 keepalived 文件夹
mkdir -p /etc/keepalived
5、将 keepalived配置文件拷贝到etc下
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf
6、添加可执行权限
chmod +x /etc/init.d/keepalived
7、添加keepalived到开机自启动
chkconfig --add keepalived
chkconfig keepalived on
整理如下，直接拷贝执行
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/keepalived
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
mkdir -p /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf
chmod +x /etc/init.d/keepalived
chkconfig --add keepalived
chkconfig keepalived on