Linux中使用keepalived高可用工具解决宕机问题

1. 安装keepalived高可用工具

1.1 切换目录到/usr/loca中

1.2 解压该压缩包tar -zxvf keepalived--1.2.18.tar.gz

1.3 切换目录到解压后的文件keepalived--1.2.18

1.4  yum install -y openssl openssl-devel

1.5 ./configure --prefix=/usr/local/keepalived 编译，将编译文件放到/usr/local/keepalived

1.6 make编译

1.7 make install安装

1.8 在/etc/keepalived  创建目录  mkdir /etc/keepalived

1.9 复制文件操作如下

1.10 cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

1.11 cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/

1.12 cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/

1.13 ln -s /usr/local/sbin/keepalived /usr/sbin/

1.14 ln -s /usr/local/keepalived/sbin/keepalived /sbin/

1.15 将nginx启动脚本和keepalived.conf配置上传到/etc/keepalived

  

1.16修改主机中的keepalived.conf文件

 1.17 修改备机keepalived.conf文件

1.19 启动主机和备机后访问页面

1.20 现在将主机关闭后启动页面

1.21 keepalived 常用命令

　　启动Keepalived：service keepalived start

　　关闭Keepalived：service keepalived stop