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After you configure the rules on a ISA Server 2004 Service Pack 2 (SP2)-based computer, the computer may try to authenticate users


View products that this article applies to.

Symptoms

You configure the rules on a Microsoft Internet Security and Acceleration (ISA) Server 2004 Service Pack 2 (SP2) computer to apply to all users. After you do this, the ISA Server computer may sometimes try to authenticate users who are running virtual private network (VPN) client computers. When ISA Server rules apply to all users, there is no reason to authenticate users.

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Resolution

To resolve this problem, follow these steps:
  1. On the ISA Server computer, install the hotfix that is described in the following Microsoft Knowledge Base article:
    916106� Update for HTTP issues in Internet Security and Acceleration Server 2004 Service Pack 2
  2. Run the following Microsoft Visual Basic script on the ISA Server computer.

    Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements.

    Note After you run this script, the ISA Server computer no longer authenticates users when the computer evaluates the firewall policy rules. If any rule is applied to a user group, the rule will not match. We recommend that you be careful when you use this script.
    '------------------------------------------------------------------------DisablePortPermAuthen begin
    Sub AddDisablePortPermissionAuthentication()
    
        ' Create the root object.
        Dim root  ' The FPCLib.FPC root object
        Set root = CreateObject("FPC.Root")
    
        'Declare the other objects needed.
        Dim array       ' An FPCArray object
        Dim VendorSets  ' An FPCVendorParametersSets collection
        Dim VendorSet   ' An FPCVendorParametersSet object
    
        ' Get references to the array object
        ' and the network rules collection.
        Set array = root.GetContainingArray
        Set VendorSets = array.VendorParametersSets
    
        On Error Resume Next
        Set VendorSet = VendorSets.Item( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
    
        If Err.Number <> 0 Then
            Err.Clear
    
            ' Add the item
            Set VendorSet = VendorSets.Add( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
            CheckError
            WScript.Echo "New VendorSet added... " & VendorSet.Name
    
        Else
            WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value("DisablePortPermissionAuthentication")
        End If
    
        if VendorSet.Value("DisablePortPermissionAuthentication") <> true Then
    
            Err.Clear
            VendorSet.Value("DisablePortPermissionAuthentication") = true
    
            If Err.Number <> 0 Then
                CheckError
            Else
                VendorSets.Save false, true
                CheckError
    
                If Err.Number = 0 Then
                    WScript.Echo "Done with DisablePortPermissionAuthentication, saved!"
                End If
            End If
        Else
            WScript.Echo "Done with DisablePortPermissionAuthentication, no change!"
        End If
    
    End Sub
    
    Sub CheckError()
    
        If Err.Number <> 0 Then
            WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description
            Err.Clear
        End If
    
    End Sub
    
    AddDisablePortPermissionAuthentication
    '------------------------------------------------------------------------DisablePortPermAuthen end
    ---
    
    To run this script, follow these steps:
    1. Copy the script to a text editor such as Notepad, and then use a .vbs extension to save the file.
    2. Double-click the .vbs file to run the script.

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More information

To revert to the default behavior that existed before you ran the script that is described in the "Resolution" section, run the following script.
'------------------------------------------------------------------------EnablePortPermAuthen begin
Sub RemoveDisablePortPermissionAuthentication()

    ' Create the root object.
    Dim root  ' The FPCLib.FPC root object
    Set root = CreateObject("FPC.Root")

    'Declare the other objects needed.
    Dim array       ' An FPCArray object
    Dim VendorSets  ' An FPCVendorParametersSets collection
    Dim VendorSet   ' An FPCVendorParametersSet object

    ' Get references to the array object
    ' and the network rules collection.
    Set array = root.GetContainingArray
    Set VendorSets = array.VendorParametersSets

    On Error Resume Next
    Set VendorSet = VendorSets.Item( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )

    If Err.Number <> 0 Then
        Err.Clear

        ' Add the item
        Set VendorSet = VendorSets.Add( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
        CheckError
        WScript.Echo "New VendorSet added... " & VendorSet.Name

    Else
        WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value("DisablePortPermissionAuthentication")
    End If

    if VendorSet.Value("DisablePortPermissionAuthentication") <> false Then

        Err.Clear
        VendorSet.Value("DisablePortPermissionAuthentication") = false

        If Err.Number <> 0 Then
            CheckError
        Else
            VendorSets.Save false, true
            CheckError

            If Err.Number = 0 Then
                WScript.Echo "Done with EnablePortPermissionAuthentication, saved!"
            End If
        End If
    Else
        WScript.Echo "Done with EnablePortPermissionAuthentication, no change!"
    End If

End Sub

Sub CheckError()

    If Err.Number <> 0 Then
        WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description
        Err.Clear
    End If

End Sub

RemoveDisablePortPermissionAuthentication
'------------------------------------------------------------------------EnablePortPermAuthen end
---

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Keywords: KB916705, kbtshoot, kbhotfixserver

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Article Info
Article ID : 916705
Revision : 4
Created on : 7/25/2006
Published on : 7/25/2006
Exists online : False
Views : 304