sudo apt-get install build-essential
sudo apt-get install libtool
sudo apt-get update
sudo apt-get install libpcre3 libpcre3-dev
sudo apt-get install zlib1g-dev
sudo apt-get install openssl
sudo apt-get update
sudo apt-get install nginx

systemctl status nginx驗證是否安裝成功。

$ systemctl status nginx
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: en
   Active: active (running) since Mon 2021-11-01 10:07:38 CST; 4h 19min ago
     Docs: man:nginx(8)
 Main PID: 8915 (nginx)
    Tasks: 3 (limit: 9461)
   CGroup: /system.slice/nginx.service
           ├─8915 nginx: master process /usr/sbin/nginx -g daemon on; master_pro
           ├─8916 nginx: worker process
           └─8917 nginx: worker process
...

2 配置Nginx

虛擬機1：

/etc/nginx/nginx.conf是主配置文件，里面具體沒研究過，但要注意把以下內(nèi)容解除注釋：

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;

修改后service nginx restart重啟Nginx。

創(chuàng)建/etc/nginx/conf.d/test.conf如下：

server {
  listen 80; #Nginx服務器監(jiān)聽端口
  charset     utf-8;
  server_name test.com; #域名

  location / {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Nginx-Proxy true;

    proxy_pass http://192.168.10.11:1234/; #反向代理的IP+端口
    proxy_redirect off;
  }
}

proxy_pass http://192.168.10.10:1234/;這行中，最后的'/'斜杠一定不要忘記加上。

nginx -s reload更新配置

reload的原理：
1 首先檢查配置語法是否有誤
2 主進程嘗試應用配置
3 如果成功：啟動新工作進程，并關閉舊的進程
4 如果失?。褐鬟M程配置回滾