sudo apt-get update
sudo apt-get install nginx
sudo nginx -v


sudo systemctl status nginx
sudo systemctl start nginx
sudo systemctl stop nginx
sudo systemctl restart nginx

#浏览器输入：http://192.168.31.181/


#查看文件结构
cd /etc/nginx
sudo cp nginx.conf nginx.conf-org

#添加一个站点代理
nano /etc/nginx/conf.d/api.demo.com.conf
====================
server {
    server_name   api.demo.com;
 
    location / {
        proxy_pass http://192.168.31.142:5001;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
    }
}
===========================

#host添加一段
192.168.31.181 api.demo.com

浏览器访问：

http://api.demo.com/swagger/index.html