第一步：先安装依赖包     yum install -y libselinux-devel openssl-devel krb5-devel 

第二步：在官网下载安装包：https://www.keepalived.org/download.html

第三步：把安装包传上服务器，解压。

第四步：进入解压的文件夹，编译安装  ./configure --prefix=/software/keepalived

//没有权限的话用sudo或者root，但我在make install 时 在/usr/lib/systemd/system下创建文件时sudo还是不够权限，所以只能用root

第五步：make && make install

第六步：cp /software/tools/keepalived-2.2.2/keepalived/etc/init.d/keepalived /etc/init.d

第七步：创建文件夹 mkdir /etc/keepalived 

第八步：cp  /software/tools/keepalived-2.2.2/keepalived/etc/sysconfig/keepalived  /etc/sysconfig/

cp /software/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

cp /software/keepalived/sbin/keepalived /usr/sbin/

 第九步：启动keepalived：systemctl start keepalived

查看状态 systemctl status keepalived

如果起不来 检查下网卡名称是否一致，如果不对，请修改一致：

cd /etc/sysconfig/network-scripts/ifcfg-ens160

 vi /etc/keepalived/keepalived.conf