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Determining If the Specified Server Is a Front-End Server

Determining If the Specified Server Is a Front-End Server

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The following example determines if the specified server is a front-end server.

Visual Basic

'//////////////////////////////////////////////////////////////////////
' Function: isFrontEndServer()
' Purpose:  Determines if the specified server is a front-end server.
'
' Input:    szDomainName:               Domain of the Exchange organization
'           szOrganizationName:         Name of Exchange Organization
'           szAdministrativeGroupName:  Name of Administrative Group
'           szServerName:               Name of server to enumerate
'           szUserName:                 Admin Username
'           szUserPwd:                  Admin pwd
'           szUserList:                 List of users
'           szDirectoryServer:          Name of the Directory Server
'
' Output:   isFrontEndServer:           Contains Error code (if any)
'           isFrontEnd                  Answer to the question
'
' Note:  In order for this example to function correctly, it may be necessary to include
' references to the following libraries: Active DS Type Library, Microsoft CDO for
' Exchange Management Library, Microsoft Cluster Service Automation Classes,
' Microsoft CDO for Windows 2000 Library.
'//////////////////////////////////////////////////////////////////////
Public Function isFrontEndServer(ByVal szDomainName As String, _
                                 ByVal szOrganizationName As String, _
                                 ByVal szAdministrativeGroupName As String, _
                                 ByVal szServerName As String, _
                                 ByVal szUserName As String, _
                                 ByVal szUserPwd As String, _
                                 ByRef isFrontEnd As Boolean, _
                                 ByVal szDirectoryServer) As Integer


    Dim objLdap As IADsOpenDSObject
    Dim objContainer As IADs
    Dim szConnString As String
    Dim szaDomTokens() As String
    Dim szDomainDN As String

    On Error GoTo errhandler

    ' Put the domain name into an ldap string.
    szaDomTokens = Split(szDomainName, ".", -1, 1)
    szDomainDN = Join(szaDomTokens, ",dc=")
    szDomainDN = "dc=" & szDomainDN

    ' Build up the ldap connection string.

    szConnString = "LDAP://" + szDirectoryServer + "/cn=" + szServerName + _
                   ",cn=servers,cn=" + szAdministrativeGroupName + ",cn=Administrative Groups,cn=" _
                   + szOrganizationName + ",cn=Microsoft Exchange,cn=services,cn=configuration," + _
                   szDomainDN

    ' Open up the directory with passed credentials.

    Set objLdap = GetObject("LDAP:")

    ' Get a container object from the connection string.

    Set objContainer = objLdap.OpenDSObject(szConnString, _
                                            szUserName, _
                                            szUserPwd, _
                                            ADS_SECURE_AUTHENTICATION)

    isFrontEnd = CBool(objContainer.Get("serverRole"))

    isFrontEndServer = 0

    ' Clean up.
    Set objLdap = Nothing
    Set objContainer = Nothing

    Exit Function

    ' Error handling.
errhandler:

    Set objLdap = Nothing
    Set objContainer = Nothing
    isFrontEndServer = 1
    ' Implement error logging here.

    Exit Function


End Function

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Build: June 2007 (2007.618.1)

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