本文参考：https://blog.csdn.net/yelllowcong/article/details/78764355
安装环境：centos7-x64，keepalived-1.4.5
一、下载安装包
官网下载地址：
http://www.keepalived.org/software/keepalived-1.4.5.tar.gz
二、安装前的准备
yum -y install gcc gcc-c++ autoconf automake make
yum -y install zlib zlib-devel openssl openssl-devel pcre pcre-devel
三、安装
1、解压文件
tar -zxvf keepalived-1.2.18.tar.gz
2、安装前的配置
cd /home/ding/keepalived-1.2.18/
./configure --prefix=/usr/local/keepalived/
说明：
- --prefix 指定安装地址
- /usr/local/keepalived/为安装的目录
3、编译并安装
make && make install
四、将Keepalived添加到系统服务
1、创建keepalived配置文件目录
mkdir /etc/keepalived
2、拷贝配置文件到/etc/keepalived目录下
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
3、拷贝keepalived脚本到/etc/sysconfig/ 目录
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
4、建立软连接
ln -s /usr/local/keepalived/sbin/keepalived /sbin/
5、添加到开机启动（可选）
chkconfig keepalived on
6、启动服务
systemctl start keepalived
7、查看服务状况
systemctl status keepalived
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