nginx.conf

server {
    server_name domainname.com www.domainname.com;
    root /var/www/;
    listen 80;
    index index.html index.htm index.php;

    location / {
        try_files $uri $uri/ /index.php?q=$uri&$args;
    }

    location ~ \.php$ {
        try_files $uri /index.php =404;
        fastcgi_pass   unix:/var/run/php5-fpm.sock;
        fastcgi_index  index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include        fastcgi_params;
    }

    location ~* \.(css|js|png|jpg|jpeg|gif|ico)$ {
        expires 1d;
    }
}