nginx反向代理部分代碼：
upstream php_server_pool1 {
server IP:80;
}
server {
listen 80;
server_name www.123.com 123.com;
location /
{ proxy_pass http://php_server_pool1;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
}
access_log /data1/logs/123access.com.log;
}