here is dynamic_config file
<?xml version="1.0" encoding="UTF-8"?>
<Configuration Version="7.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="schemas/cd_dynamic_conf.xsd">
<!-- The URLMappings define the relation between publication id's and domain names. It has optional attribute
PathScanDepth which defines the deepest level what will be looked into the URI. The default value is 100.
Values below than 1 will be considered 1.
-->
<!-- <URLMappings PathScanDepth="20" > -->
<URLMappings>
<StaticMappings>
<!-- The Publications element is a container for separate Publication elements. -->
<Publications>
<!-- The publication element allows you to specify Publication specific settings.
The Id indicates the id of the publication. This should be a number. -->
<Publication Id="3">
<!-- The Host element allows you to specify information about the site that
can be used to create URLs for Dynamic Links.
The following attributes are specified:
Domain The domain of the website, for example www.tridion.com.
Port The port of the website, for instance 8080.
Path The path of the virtual directory of your website.
Protocol The protocol used for the website. -->
<Host Domain="localhost" Port="80" Protocol="http" Path="" />
</Publication>
</Publications>
</StaticMappings>
<StorageMapping IdentifyPublicationByProperty="publicationUrl" />
</URLMappings>
<!-- This node configures the renderer used by the tcdl engine. You can define here custom renderer
of the tcdl tags.
-->
<TCDLEngine>
<Properties>
</Properties>
</TCDLEngine>
</Configuration>