3.2.备节点（192.168.80.21）
说明：安装方式同nginx主节点。
4.安装keepalived
4.1.主节点（192.168.80.22）
#安装keepalived
yum install keepalived -y
#启动keepalived服务
/etc/init.d/keepalived start
-------------------------------------------
[root@hadoop02 anginx]# /etc/init.d/keepalived start
正在启动 keepalived： [确定]
[root@hadoop02 anginx]# ps -ef |grep keepalived
root 15723 1 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15724 15723 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15725 15723 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15731 15622 0 00:59 pts/1 00:00:00 grep keepalived
[root@hadoop02 anginx]#
#设置开机自启动
echo "/etc/init.d/keepalived start" >>/etc/rc.local
#关闭keepalived服务
/etc/init.d/keepalived stop
#编辑keepalived配置文件
vi /etc/keepalived/keepalived.conf
-----------------------------------------------------------
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id lb01
}
vrrp_instance VI_1 {
state MASTER
interface eth1
virtual_router_id 55
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass server123
}
virtual_ipaddress {
192.168.80.100 dev eth1 label eth1:1
}
}
...........................................................
关于配置说明：
【router_id】 是路由标识，在一个局域网里面应该是唯一的 【vrrp_instance VI_1】{...}这是一个VRRP实例，里面定义了keepalived的主备状态、接口、优先级、认证和IP信息 【state】 定义了VRRP的角色 【interface】定义使用的接口，这里我的服务器用的网卡都是eth1 【virtual_router_id】是虚拟路由ID标识，一组的keepalived配置中主备都是设置一致 【priority】是优先级，数字越大，优先级越大， 【auth_type】是认证方式 【auth_pass】是认证的密码 【virtual_ipaddress】 ｛...｝定义虚拟IP地址，可以配置多个IP地址，这里我定义为192.168.80.100，绑定了eth1的网络接口，虚拟接口eth1:14.2.备节点（192.168.80.21）
#安装keepalived
yum install keepalived -y
#启动keepalived服务
/etc/init.d/keepalived start
-------------------------------------------
[root@hadoop02 anginx]# /etc/init.d/keepalived start
正在启动 keepalived： [确定]
[root@hadoop02 anginx]# ps -ef |grep keepalived
root 15723 1 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15724 15723 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15725 15723 0 00:59 ? 00:00:00 /usr/sbin/keepalived -D
root 15731 15622 0 00:59 pts/1 00:00:00 grep keepalived
[root@hadoop02 anginx]#
#设置开机自启动
echo "/etc/init.d/keepalived start" >>/etc/rc.local
#关闭keepalived服务
/etc/init.d/keepalived stop
#编辑keepalived配置文件
vi /etc/keepalived/keepalived.conf
-----------------------------------------------------------------
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id lb02
}
vrrp_instance VI_1 {
state BACKUP
interface eth1
virtual_router_id 55
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass server123
}
virtual_ipaddress {
192.168.80.100 dev eth1 label eth1:1
}
}
.............................................................
