NGINX Vhost configuration to serve dynamic virtual host using domain names as the website router

nginx_dynamic_host.conf

server {
	index index.html index.php index.htm;
        server_name ~^(www\.)?(?P<domain>.+)$;	
	root /var/www;
	
	location @notfound {
 		root /home/websites/Websites;
 		access_log on;
  		rewrite ^ /404.html last;
	}

	location @server_error {
		try_files 500.html /../500.html =500;
	}

	#error_page 404 = @notfound;
	error_page 500 = @server_error;
	
	location = /favicon.ico {
	     	access_log     off;
		log_not_found  off;
	}

	location / {
                index index.html index.php;
		access_log /var/log/nginx/access.websites.log;
		error_log  /var/log/nginx/error.websites.log error;
		root  /home/websites/Websites/$domain;
		try_files $uri $uri/ /index.php;  # Soporte para la mayoria de los frameworks PHP, como Laravel, Symfony o CakePHP
	}
	
        # Cualquier archivo que empieze por . o _ debe ser protegido.
	location ~ /[._]+ {
 		root /home/websites/Websites;
		#try_files	$uri =404;
		#error_page 404 @notfound;
		error_page 404  /home/websites/Websites/404.html;
	}	
	
	# Cualquier archivo .php debe ser interpretado por php-fpm
	location ~ .php$ {
		root  /home/websites/Websites/$domain;
		try_files 	$uri =404;
                fastcgi_split_path_info ^(.+\.php)(.*)$;
    		fastcgi_pass   	unix:/var/run/php5-fpm.sock;
   		fastcgi_index   index.php;
    		include         fastcgi_params;
    		fastcgi_param   SCRIPT_FILENAME	$document_root$fastcgi_script_name;
                fastcgi_param   SERVER_NAME $host;
            	fastcgi_intercept_errors        on;
            	fastcgi_ignore_client_abort     off;
            	fastcgi_connect_timeout     	60;
            	fastcgi_send_timeout         	180;
            	fastcgi_read_timeout        	180;
            	fastcgi_buffer_size         	128k;
            	fastcgi_buffers         4	256k;
            	fastcgi_busy_buffers_size     	256k;
            	fastcgi_temp_file_write_size    256k;
	}
}