两台Linux
环境搭建
安装keepalived
1.下载keepalived
wget http://www.keepalived.org/software/keepalived-1.2.18.tar.gz
2.解压安装：
tar -zxvf keepalived-1.2.18.tar.gz -C /usr/local/
3.下载插件openssl
yum install -y openssl openssl-devel（需要安装一个软件包）
4.开始编译keepalived
cd /usr/local/keepalived-1.2.18/ && ./configure --prefix=/usr/local/keepalived
5.make一下
make && make install
keepalived安装成Linux系统服务
（项目启动时候 服务也启动）
将keepalived安装成Linux系统服务，因为没有使用keepalived的默认安装路径（默认路径：/usr/local）,安装完成之后，需要做一些修改工作：
首先创建文件夹，将keepalived配置文件进行复制：
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
然后复制keepalived脚本文件：复制到 系统的文件里 会有意想不到的效果
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
ln -s /usr/local/sbin/keepalived /usr/sbin/
ln -s /usr/local/keepalived/sbin/keepalived /sbin/
可以设置开机启动：chkconfig keepalived on，到此我们安装完毕!
开启& 关闭:
service keepalived start
service keepalived stop
