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keepalived

2024-08-14 18:38:25   222人阅读

IP配置

管理IP地址角色备注网卡
192.168.1.114主调度器（Director）对外提供VIP服务的地址为192.168.1.88eth1
192.168.1.205备用调度器 

eth0

192.168.1.115RS1  
192.168.1.116RS2  

 

 

 

 

 

名词解释：

主节点：  master

备节点:    backup 

虚拟路由器冗余协议： VRRP(Virtual Route Redundancy Protocol) ，它的出现是为了解决静态路由的单点故障

 

2.安装

在主调度器和备用调度器进行同样的安装，不同的是配置文件

安装openssl

yum -y install openssl-develtar -xvf keepalived-1.2.15.tar.gzcd keepalived-1.2.15./configure --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.32-431.el6.x86_64/makemake install

 

配置规范启动

cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/cp /usr/local/keepalived/sbin/keepalived /usr/sbin/chkconfig keepalived on

 

配置配置文件

新建一个配置文件，默认keepalived启动会去/etc/keepalived目录下寻找配置文件

mkdir /etc/keepalivedcp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

编辑主调度器的配置文件

! Configuration File for keepalivedglobal_defs {   notification_email {     zy5724@163.com   }   notification_email_from Alexandre.Cassen@firewall.loc   smtp_server 127.0.0.1   smtp_connect_timeout 30   router_id LVS_114}vrrp_instance VI_1 {    state MASTER    interface eth1    virtual_router_id 114    priority 150    advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    virtual_ipaddress {        192.168.1.88    }}

从配置文件

! Configuration File for keepalivedglobal_defs {   notification_email {     zy5724@163.com   }   notification_email_from Alexandre.Cassen@firewall.loc   smtp_server 127.0.0.1   smtp_connect_timeout 30   router_id LVS_205}vrrp_instance VI_1 {    state BACKUP    interface eth0    virtual_router_id 114    priority 100    advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    virtual_ipaddress {        192.168.1.88    }}

注意上面有4个不一样的配置的地方，一般是三个，主服务器的网卡我配置成了eth1。

测试：

主调度器：

技术分享

当停掉主调度器，再看从调度器，马上会出现VIP

技术分享

通过ping 192.168.1.88可以看见当主调度器宕机，从调度器立马会接管主调度器，实现了高可用。

 

keepalived


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