注意：前提是公网域名通过备案和域名解析

1.安装nginx

yum install -y nginx
  

2.找到安装nginx.conf文件

       server {
               listen       80;
               listen       [::]:80;
               server_name  xxx.com.cn;
               root         /usr/share/nginx/html;
               # Load configuration files for the default server block.
               include /etc/nginx/default.d/*.conf;
               location / {
       #           root   html;
       #           index  index.html index.htm;
                   proxy_pass  http://101.43.39.xx:8090;
               }
               error_page 404 /404.html;
               location = /404.html {
               }
               error_page 500 502 503 504 /50x.html;
               location = /50x.html {
               }
           }
   
  

   
  
  

3.重启nginx服务

       cd /usr/sbin
       ./nginx -s reload
   
  

4.修改成功