据了解，IIS7下面默认HTTPS绑定是无法指定主机头的，但我们可以通过手工修改IIS配置来实现主机头绑定。

打开C:\Windows\system32\inetsrv\config\applicationHost.config

定位到如下位置：

<bindings>
    <binding protocol="https" bindingInformation="*:443" />
    <binding protocol="net.tcp" bindingInformation="808:*" />
    <binding protocol="net.pipe" bindingInformation="*" />
    <binding protocol="net.msmq" bindingInformation="localhost" />
    <binding protocol="msmq.formatname" bindingInformation="localhost" />
    <binding protocol="http" bindingInformation="*:80:www.niaoyundemo.com" />

</bindings>

找到https的配置项目行，修改为： 

<binding protocol="https" bindingInformation="*:443:www.www.niaoyundemo.com" />

注意这里的www.niaoyundemo.com要换成你自己的域名，之后保存即可。