本文介绍Nginx+keepalived配置双主负载均衡集群环境，希望对于初学Nginx服务器相关的朋友有帮助，更多Nginx安装、配置、报错处理等资源请本站内搜索。。
主要区别如下：
//蓝色与红色仔细观察
192.168.10.1主服务器的keepalived配置
!ConfigurationFileforkeepalived
global_defs{
notification_email{
[email protected]
}
notification_email_from[email protected]
smtp_server127.0.0.1
smtp_connect_timeout30
}
vrrp_scriptchk_http_port{
script"/etc/keepalived/chk_nginx_pid.sh"
interval2
weight2
}
vrrp_instanceVI_1{
stateMASTER
interfaceeth0
virtual_router_id51//VI_2为52
priority100//备用是99
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
track_script{
chk_http_port
}
virtual_ipaddress{
192.168.10.6//VIP1
}
}
vrrp_instanceVI_2{
stateBACKUP
interfaceeth0
virtual_router_id52//VI_1是51
priority99//主是100
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
track_script{
chk_http_port
}
virtual_ipaddress{
192.168.10.5//VIP2
}
}
192.168.10.2主服务器的keepalived配置
!ConfigurationFileforkeepalived
global_defs{
notification_email{
[email protected]
}
notification_email_from[email protected]
smtp_server127.0.0.1
smtp_connect_timeout30
}
vrrp_scriptchk_http_port{
script"/etc/keepalived/chk_nginx_pid.sh"
interval2
weight2
}
vrrp_instanceVI_1{
stateBACKUP
interfaceeth3
virtual_router_id51
priority99
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
track_script{
chk_http_port
}
virtual_ipaddress{
192.168.10.6
}
}
vrrp_instanceVI_2{
stateMASTER
interfaceeth3
virtual_router_id52
priority100
advert_int1
authentication{
auth_typePASS
auth_pass1111
}
track_script{
chk_http_port
}
virtual_ipaddress{
192.168.10.5
}
}
测试
停止192.168.10.1的nginx服务访问http://192.168.10.5与http://192.168.10.6刷新也正常
启动192.168.10.1的nginx服务与keepalived服务（因为脚本写为nginx服务停止了，keepalived也停止）
停止192.168.10.4的nginx服务访问http://192.168.10.5与http://192.168.10.6刷新也正常
查看ipa
会发现停掉10.4之后10.1eth0会出现192.168.10.5与192.168.10.6
![nginx+keepalived双主负载均衡的[主要配置]](http://www.chinastor.com/uploads/allimg/160713/14151562E-0.jpg "nginx+keepalived双主负载均衡的[主要配置]")
同理如此停掉10.1之后10.4eth3也会出现如图
不足之处欢迎前来留言指正。还有好的想法也可以留言共同学习与讨论。
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