map $uri $blogname{
	~^(?<blogpath>/[^/]+/)files/(.*)	$blogpath;
}

map $blogname $blogid{
	default	-999;

	# Must Read - http://rtcamp.com/tutorials/nginx-maps-wordpress-multisite-static-files-handling/
	# example.com/site1/	2;
	# example.com/site2/	3;
	
	include /var/www/example.com/htdocs/wp-content/plugins/nginx-helper/map.conf;
}

server {
	server_name example.com;

	access_log   /var/log/nginx/example.com.access.log;
	error_log    /var/log/nginx/example.com.error.log;

	root /var/www/example.com/htdocs;
	index index.php;

	location ~ ^(/[^/]+/)?files/(?<rt_file>.+) {
		try_files /wp-content/blogs.dir/$blogid/files/$rt_file /wp-includes/ms-files.php?file=$rt_file;
		access_log off;	log_not_found off; expires max;
	}

	#avoid php readfile()
	location ^~ /blogs.dir {
		internal;
		alias /var/www/example.com/htdocs/wp-content/blogs.dir;
		access_log off;	log_not_found off;	expires max;
	}

	if (!-e $request_filename) {
		# wp-admin to wp-admin/
		rewrite /wp-admin$ $scheme://$host$uri/ permanent;
		#other wp-* files/folders
		rewrite ^(/[^/]+)?(/wp-.*) $2 last;
		#other php files
		rewrite ^(/[^/]+)?(/.*\.php) $2 last;
	}

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

	location ~ \.php$ {
		try_files $uri /index.php;
		include fastcgi_params;
		fastcgi_pass unix:/var/run/php5-fpm.sock;
	}

	location ~* ^.+\.(ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
		access_log off;	log_not_found off; expires max;
	}

	location = /favicon.php { access_log off; log_not_found off; }
	location = /robots.txt { access_log off; log_not_found off; }
	location ~ /\. { deny  all; access_log off; log_not_found off; }
}