Get Network Account ID in IIS and ASP.NET

1. Follow this link to DisableLoopbackCheck more...
2. In IIS, set the desire application pool to: "ApplicaitonPoolIdentity"
3. In IIS, set the "Authentication" for the desire website to only "Windows Authentication = Enabled" and others disabled
4. In you ASP.NET application, under default page:
• Session["UserName"] = Utilities.GetUserNetworkLoginName(Request.ServerVariables["AUTH_USER"]);
5.  In "Utilities" class, use the following method to get the user in both IIS Express and IIS:
•  public static string GetUserNetworkLoginName(string networkLoginId)
          {           
              if (string.IsNullOrEmpty(networkLoginId))
                  networkLoginId = WindowsIdentity.GetCurrent().Name;
  
              // if login contains monet\, drop it
              if (networkLoginId.Contains("\\"))
                  networkLoginId = networkLoginId.Substring(networkLoginId.LastIndexOf("\\") + 1);
  
              return networkLoginId;
          }