搭建keepalived实现VIP漂移

一、更改配置yum源

    1.备份：mv

/etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

    2.下载阿里源：wget -O

/etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

    3.缓存：yum makecache

二、安装lrzsz

    1.yum -y install lrzsz

三、安装keepalived

1.yum -y install keepalived

2.创建目录

  mkdir /data/UnicomSMS/Keepalived

  mkdir /data/UnicomSMS/Keepalived/lock

  mkdir /data/UnicomSMS/Keepalived/lock/subsys

四、修改配置文件

Master

[if !vml]

[endif]

Slave

[if !vml]

[endif]

Nginx检查脚本

[if !vml]

[endif]

五、启动测试

/etc/init.d/keepalived

start

[if !vml]

[endif]

六、VIP漂移测试

正常情况

[if !vml]

[endif]

停到主上的keepalived vip地址会飘向备

[if !vml]

[endif]

在把主上的keepalived启动vip会抢占到主

[if !vml]

[endif]

七、方便管理

1.ln -s /var/lock/subsys/keepalived /data/UnicomSMS/Keepalived/lock/subsys/

2.ln -s /etc/keepalived/keepalived.conf /data/UnicomSMS/Keepalived/

3.ln -s /etc/keepalived/nginx_check.sh/data/UnicomSMS/Keepalived/