4. 启动 keepalived

主备服务器上分别执行如下命令启动 keepalived 服务
将 keepalived 注册为系统服务，启动日志：/var/log/message
这儿复制三个文件到指定的系统启动文件夹即可，
\cp -a /opt/tools/keepalived-1.3.9/keepalived/etc/init.d/keepalived /etc/init.d/
\cp -a /opt/tools/keepalived-1.3.9/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
\cp -a /opt/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
接下来就可以直接输入命令
/ 启动 keepalived
systemctl start keepalived.service

/ 停止 keepalived
systemctl stop keepalived.service

软件下载

Nginx 下载：
nginx-1.14.0.tar.gz
http://nginx.org/en/download.html

生产环境下建议选择 Stable version 版本，另外 Nginx 区分 linux 版本及 windows 版本。
Keepalived 下载：
keepalived-1.3.9.tar.gz
http://www.keepalived.org/download.html

Tengine 下载：
tengine-2.2.3.tar.gz

http://tengine.taobao.org/download.html