环境

系统：Windows7
Nginx版本：1.26.2

Nginx负载均衡实现

0. 实现逻辑

Nginx1：访问入口
Nginx2、Nginx3、Nginx4：组成负载集群

1. 配置C:\Windows\System32\drivers\etc\hosts文件

新增IP域名映射
127.0.0.1 backend1.com
127.0.0.1 backend2.com

2. Nginx1配置

http {
	upstream backend {
		server backend1.com:8081;
		server backend2.com:8082;
		server backend3.com:8000 backup;
	}
    server {
        listen       80;
        server_name  localhost;

        location / {
            proxy_pass http://backend;
        }
    }
}

3. Nginx2配置

http {
    server {
        listen       8081;
        server_name  backend1.com;
    }
}

4. Nginx3配置

http {
    server {
        listen       8082;
        server_name  backend2.com;
    }
}

5. Nginx4配置

http {
    server {
        listen       8000;
        server_name  backend3.com;
    }
}