mysql占用内存太大，所以选用sqlite
安装：
//更新 sudo apt-get update sudo apt-get upgrade //安装nginx sudo apt-get install nginx //启动nginx sudo /etc/init.d/nginx start //安装php-fpm sudo apt-get install php5-fpm //安装sqlite sudo apt-get install php5-sqlite
Nginx配置：
sudo nano /etc/nginx/sites-available/default
修改端口：
listen 80; ## listen for
ipv4.
修改index:
index index.php
index.html index.htm
修改root:
root
/var/www;
注意：去掉PHP前注释
location ~ \.php$ { fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; }
重启Nginx
sudo /etc/init.d/nginx reload