NGINX反向代理响应

我使用NGINX服务器作为反向代理。NGINX服务器接受来自外部客户端的请求（HTTP或HTTPS不重要），并将该请求传递给后端服务器。后端服务器将“a”URL返回给客户端，该客户端将具有另一个URL，该URL应用于进行后续API调用。我希望这个返回的URL具有NGIX主机和端口号，而不是后端服务主机和端口号，这样我的后端服务器详细信息就永远不会公开。例如

1) Client request: 
http://nginx_server:8080

2) Nginx receives this and passes it to the backend running with some functionality at 
http://backend_server:8090

3) The backend server receives this request and passes another URL to the client http://backend_server:8090/allok.

4) The client uses this URL and makes another subsequent API calls.

我想要的是，在响应的步骤4中，“backend_server:port”被初始请求中的nginx服务器和端口替换。例如

http://nginx_server:8080/allok

然而，人们的反应可以追溯到

http://backend_server:8090/allok

我的nginx.conf

http {
    server {
        listen       8080;     --> Client request port
        server_name  localhost;

        location / {         
            proxy_pass http://localhost:8090;   ---> Backend server port. The backend 
                                                     service and NGINX will always be on the same 
                                                     machine
            proxy_redirect http://localhost:8090 http://localhost:8080; --> Not sure if this is 
                                               correct. Doesn't seem to do what I want to achieve
           # proxy_set_header Host $host;
        }
  }
}

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提前感谢

我能够解决它。我必须从配置中删除proxy_redirect指令

我能够解决它。我必须从配置中删除proxy_redirect指令