ASP.NET get NT UserID

Using ASP.Net how do I get the NT login ID of the user currently visiting my site?

I have done this before in the old ASP by setting the permissions on the directory to all domain users then using the Request.ServerVariables("REMOTE_USER")

What is the equivalent in .net

Thanks
cotaejAsked:
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hongjunCommented:
try
Environment.UserName

hongjun
0
pillbug22Commented:
Here's a sub I call from the Page_Load to get all the user info you have/need for the page:



Page_Load(...)

      GetAccess()

End Sub


Private Sub GetAccess()

        ' ############### Grab Windows login name and store in session ###############
        If Session("userName") = "" Or IsDBNull(Session("userName")) Then
            If Page.User.Identity.IsAuthenticated Then
                Dim userName As Array = Split(Page.User.Identity.Name, "\", -1, CompareMethod.Text)
                Session.Add("userName", LCase(userName(1)))
            End If
        End If
        ' #############################################################



        ' ################# Grab user role/permissions from DB #####################
        ' Change this area to fit your app's user/security table (if present)
        Dim connection As SqlConnection = CreateConnection()
        Dim command As New SqlCommand("SELECT allowCreateModify, allowReview, admin FROM dbTable WHERE UsserName = '" & Session("userName") & "'", connection)
        Dim record As SqlDataReader = command.ExecuteReader()
        If (record.Read()) Then
            Session("allowCreateModify") = record.GetBoolean(0)
            Session("allowReview") = record.GetBoolean(1)
            Session("admin") = record.GetBoolean(2)
            Session("isPrivate") = True
        Else
            Session("isPrivate") = False
        End If
        connection.Close()
        command.Dispose()
        ' ###############################################################



        ' #################### Grab user info from Active Directory ####################
        Dim root As New DirectoryServices.DirectoryEntry("LDAP://DC=subDomain,DC=domian,DC=com")
        Dim rootSearch As New DirectorySearcher(root)
        Dim SearchResult As SearchResult
        Dim results As SearchResultCollection
        rootSearch.Filter = ("(samaccountname=" & Session("userName") & ")")
        results = rootSearch.FindAll

        For Each SearchResult In results
            ' If AD is filled in, just pull the seperate fields instead of parsing the CN
            Session("firstName") = ParseFirstName(SearchResult.Properties("CN").Item(0))
            Session("lastName") = ParseLastName(SearchResult.Properties("CN").Item(0))
            Exit For
        Next
        ' ###################################################################

    End Sub



    Private Function ParseFirstName(ByVal strCN As String) As String
        Dim nameArray
        nameArray = Split(strCN, " ", -1, 1)
        ParseFirstName = nameArray(1)
    End Function

    Function ParseLastName(ByVal strCN As String) As String
        Dim nameArray
        nameArray = Split(strCN, " ", -1, 1)
        ParseLastName = nameArray(0)
    End Function
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