User Authentication using LDAP

Question

Hi,

In my application  want to authenticate user using LDAP from AD. but i don't know how to configure it in web.conig. Please guide how to do configuration?

thanks in advance.

like what will be in key an  value field  e.g ip,port# or something else.

<appSettings>
    <add key="DirectoryPath" value="LDAP://XXXXXXXX,XXXXXX,XXXXXX"></add>
    <add key="DirectoryDomain" value="YY"></add>
  </appSettings>