frontend application
	mode http
	bind 192.168.1.71:80
	option httplog
	option logasap
	option dontlog-normal
	option forwardfor
	option httpclose
	option accept-invalid-http-request
	acl is_media hdr_dom(host) -i media.example.com
	use_backend media if is_media
	acl is_dev hdr_dom(host) -i dev.example.com
	use_backend http_dev_srv if is_dev
	default_backend webfarm