怎么让Nginx可以访问某一IP的每个后台controller接口

http {
    upstream backend {
        server 192.168.1.10;  # 后端服务器IP
    }
 
    server {
        listen 80;
 
        location /controller1/ {

##proxy_pass http://localhost:801;
            proxy_pass http://backend/controller1/;  # 后端controller1接口
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

            proxy_set_header X-Forwarded-Proto $scheme;
        }
 
        location /controller2/ {
            proxy_pass http://backend/controller2/;  # 后端controller2接口
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
 
        # 其他location或配置...
    }
}