Adding a Default Binding <binding>


The <binding> element of the <bindings> element allows you to configure the information required for requests to communicate with a Web site.

You can configure binding information when you create a Web site, or you can edit the binding information after you create the site. Binding information includes the protocol that clients use to communicate with the site, the site's IP address, the port number, and a host header.

The <binding> element contains two attributes to configure the binding information: bindingInformation and protocol. The bindingInformation attribute contains the IP address, the port number and, optionally, the host header for the site. The protocol attribute defines the protocol to use to communicate with the site.


Version Notes
IIS 7.5 The <binding> element was not modified in IIS 7.5.
IIS 7.0 The <binding> element of the <bindings> collection was introduced in IIS 7.0.
IIS 6.0 The <bindings> collection replaces sections of the ServerBindings property on the IIS 6.0 IIsWebServer metabase object.


The <binding> element is included in the default installation of IIS 7.

How To

How to add binding information to a site

  1. Open Internet Information Services (IIS) Manager:
    • If you are using Windows Server 2008 or Windows Server 2008 R2:
      • On the taskbar, click Start, point to Administrative Tools, and then click Internet Information Services (IIS) Manager.
    • If you are using Windows Vista or Windows 7:
      • On the taskbar, click Start, and then click Control Panel.
      • Double-click Administrative Tools, and then double-click Internet Information Services (IIS) Manager.
  2. In the Connections pane, expand the server name, expand Sites, and then click the Web site on which you want to configure the bindings.
  3. In the Actions pane, click Bindings...
  4. In the Site Bindings dialog box, click Add...

  5. In the Add Site Binding dialog box, add the binding information, and then click OK.


You can add default <binding> elements within the <bindings> element in the <siteDefaults> section of the ApplicationHost.config file.Attributes

Attribute Description
bindingInformation Required string attribute.

Specifies information to communicate with a site. For example, a Web site binding includes the IP address (or unspecified IP addresses), the port number, and an optional host header used to communicate with the site.
protocol Required string attribute.

Specifies the protocol for communicating with a site.

Child Elements


Configuration Sample

The following configuration sample specifies the default bindings options for IIS 7.

            <binding protocol="http" bindingInformation="" />

Sample Code

The following code samples configure the default bindings options for IIS 7.


appcmd.exe set config -section:system.applicationHost/sites /siteDefaults.bindings.[protocol='http',bindingInformation='*'].bindingInformation:"" /commit:apphost

Note: You must be sure to set the commit parameter to apphost when you use AppCmd.exe to configure these settings. This commits the configuration settings to the appropriate location section in the ApplicationHost.config file.


using System;
using System.Text;
using Microsoft.Web.Administration;

internal static class Sample
   private static void Main()
      using (ServerManager serverManager = new ServerManager())
         Configuration config = serverManager.GetApplicationHostConfiguration();
         ConfigurationSection sitesSection = config.GetSection("system.applicationHost/sites");
         ConfigurationElement siteDefaultsElement = sitesSection.GetChildElement("siteDefaults");

         ConfigurationElementCollection bindingsCollection = siteDefaultsElement.GetCollection("bindings");
         ConfigurationElement bindingElement = bindingsCollection.CreateElement("binding");
         bindingElement["protocol"] = @"http";
         bindingElement["bindingInformation"] = @"";



Imports System
Imports System.Text
Imports Microsoft.Web.Administration

Module Sample

   Sub Main()
      Dim serverManager As ServerManager = New ServerManager
      Dim config As Configuration = serverManager.GetApplicationHostConfiguration
      Dim sitesSection As ConfigurationSection = config.GetSection("system.applicationHost/sites")
      Dim siteDefaultsElement As ConfigurationElement = sitesSection.GetChildElement("siteDefaults")

      Dim bindingsCollection As ConfigurationElementCollection = siteDefaultsElement.GetCollection("bindings")
      Dim bindingElement As ConfigurationElement = bindingsCollection.CreateElement("binding")
      bindingElement("protocol") = "http"
      bindingElement("bindingInformation") = ""

   End Sub

End Module


var adminManager = new ActiveXObject('Microsoft.ApplicationHost.WritableAdminManager');
adminManager.CommitPath = "MACHINE/WEBROOT/APPHOST";
var sitesSection = adminManager.GetAdminSection("system.applicationHost/sites", "MACHINE/WEBROOT/APPHOST");
var siteDefaultsElement = sitesSection.ChildElements.Item("siteDefaults");

var bindingsCollection = siteDefaultsElement.ChildElements.Item("bindings").Collection;
var bindingElement = bindingsCollection.CreateNewElement("binding");
bindingElement.Properties.Item("protocol").Value = "http";
bindingElement.Properties.Item("bindingInformation").Value = "";



Set adminManager = WScript.CreateObject("Microsoft.ApplicationHost.WritableAdminManager")
adminManager.CommitPath = "MACHINE/WEBROOT/APPHOST"
Set sitesSection = adminManager.GetAdminSection("system.applicationHost/sites", "MACHINE/WEBROOT/APPHOST")
Set siteDefaultsElement = sitesSection.ChildElements.Item("siteDefaults")

Set bindingsCollection = siteDefaultsElement.ChildElements.Item("bindings").Collection
Set bindingElement = bindingsCollection.CreateNewElement("binding")
bindingElement.Properties.Item("protocol").Value = "http"
bindingElement.Properties.Item("bindingInformation").Value = ""

Deprecated Elements