apt-get install php5 php5-cgi

apt-get install nginx

apt-get install mongodb

apt-get install pecl

vim /etc/php5/cgi/php.ini
#加上 
extension=mongo.so

vim /etc/nginx/conf.d/rockmongo.conf
server {
    # 这就是你之前下载解压后的路径
    root $rockmongo;
    location ~ \.php$ {
        # php-cgi的端口号，我这里设置的是9000
        fastcgi_pass 127.0.0.1:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $rockmongo/$fastcgi_script_name;
        include fastcgi_params;
    }
}

mongod;
php-cgi -b 9000;
nginx;