在设置 Nginx 代理之前要先安装 Nginx

正文：

内容一：设置 Nginx http 代理

# vi /usr/local/nginx/conf/nginx.conf

将部分内容修改如下：

......
http {
.....
upstream webserver {
   server 192.168.1.100:80;
   server 192.168.1.200:80;
}
.....
server {
listen 80;
server_name www.eternalcenter.com;
location / {
proxy_pass http://webserver;/
}
......
}
......
}

或者：

......
http {
.....
upstream webserver {
Server    192.168.2.100    weight=1    max_fails=1  fail_timeout=30;
Server    192.168.2.200    weight=2    max_fails=2  fail_timeout=30;
Server    192.168.2.101    down;
}
.....
server {
listen 80;
server_name www.eternalcenter.com;
location / {
proxy_pass http://webserver;/
}
......
}
......
}

内容二：设置 Nginx SSH 代理

将部分内容修改如下：

stream {
upstream backend {
server 192.168.1.100:22;
server 192.168.1.200:22;
}
server{
listen 222;
proxy_connect_timeout 1s;
proxy_pass backend;
}
}

http{
......
}