Nginx配置好后台的服务和前端的，需要重启nginx和防火墙开放端口号，然后防火墙重启

修改Nginx的配置文件

server {
        listen       38001;
        server_name  211.149.137.89;
                charset utf-8;

        location / {
            root  /www/server/nginx/html/ruoyi-admin;
            try_files $uri $uri/ /index.html;
            index  index.html index.htm;
        }

        location /prod-api/ {
                        proxy_set_header Host $http_host;
                        proxy_set_header X-Real-IP $remote_addr;
                        proxy_set_header REMOTE-HOST $remote_addr;
                        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                        proxy_pass http://103.43.191.66:28001/;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

}

防火墙添加端口和开放端口

firewall-cmd --zone=public --list-ports
firewall-cmd --permanent --add-port=38001/tcp
sudo systemctl restart firewalld