VB中通过WMI控制DNS服务器，可在ASP中调用
在VB中要使用Scripting API for WMI，必须引用 Microsoft WMI Scripting V1.1 Library
下面介绍Scripting API For WMI的几个对象
SWbemLocator——用于取得SWbemServices对象，他代表了本地或远程计算机上名字空间的一个连接。
SWbemService——代表名字空间的一个连接，可用于处理它的部件
SWbemObject——代表一个单独的类定义或一个对象实例
SWbemOjbectSet——包括SWbemObject的集合
下面是DNS WMI Provider的几个对象
MicrosoftDNS_Zone——用于管理DNS服务器上的区域的类
MicrosoftDNS_AType，MicrosoftDNS_CNAMEType,MicrosoftDNS_MXType等等——管理DNS Server上的各种资源记录
详细的参考请见MSDN，我用的是VS.NET2003带的MSDN
Scripting API for WMI的路径是 MSDN Library--设置和系统管理--Windows Management Instrumentation(WMI)--SDK文档--WMI Reference--Scripting API For WMI
DNS WMI Provider的路径是 MSDN Library--网络和目录服务--域名系统(DNS)--SDK文档--DNS WMI Provider--DNS WMI Provider Reference--DNS WMI Classes
下面是代码实现
需要引用Microsoft Scripting Runtime和Microsoft WMI Scripting V1.1 Library，只是示例了A、MX、和CName记录的操作，还可以扩展其他资源记录的操作，也可以加上区域的操作，参考MSDN就可以了
Class DNSController Private objService As Object Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long Private Type OSVERSIONINFO dwOSVersionInfoSize As Long dwMajorVersion As Long dwMinorVersion As Long dwBuildNumber As Long dwPlatformId As Long szCSDVersion As String * 128 osName As String End Type Private Function GetWindowsVersion() As OSVERSIONINFO Dim ver As OSVERSIONINFO ver.dwOSVersionInfoSize = 148 GetVersionEx ver With ver Select Case .dwPlatformId Case 1 Select Case .dwMinorVersion Case 0 .osName = "Windows 95" Case 10 .osName = "Windows 98" Case 90 .osName = "Windows Mellinnium" End Select Case 2 Select Case .dwMajorVersion Case 3 .osName = "Windows NT 3.51" Case 4 .osName = "Windows NT 4.0" Case 5 If .dwMinorVersion = 0 Then .osName = "Windows 2000" ElseIf .dwMinorVersion = 1 Then .osName = "Windows XP" Else .osName = "Windows 2003" End If End Select Case Else .osName = "Failed" End Select End With GetWindowsVersion = ver End Function '判断操作系统，由于WMI在2003和2000上的实现略有差异，所以需要判断操作系统 Private Function IsWin2k3() As Boolean Dim v As OSVERSIONINFO v = GetWindowsVersion() If v.osName = "Windows 2003" Then IsWin2k3 = True Else IsWin2k3 = False End If End Function '// '// 连接到一个DNS服务器 '// '// 服务器名称，可以是计算机名，也可以是IP
'// 连接服务器所使用的用户名，如果是连接本机，请使用""
'// 连接服务器所使用的密码，如果是连接本机，请使用""
Public Function Connect(ByVal strServer As Variant, ByVal strUserName As Variant, ByVal strPassword As Variant, ByRef errMsg As Variant) As Variant On Error GoTo ll Connect = True Err.Clear Dim objLocator As WbemScripting.SWbemLocator Set objLocator = CreateObject("WbemScripting.SWbemLocator") Set objService = objLocator.ConnectServer(strServer, "root\microsoftdns", strUserName, strPassword) objService.Security_.ImpersonationLevel = 3 Connect = True Exit Function ll: Connect = False errMsg = "错误 0x" & CStr(Hex(Err.Number)) & "，连接服务器 " & strServer & " 时出现错误，具体信息是" & vbCrLf & Err.Description Set objLocator = Nothing Set objService = Nothing Err.Clear End Function '// '// 从服务器断开连接 '// Public Sub DisConnect() Set objService = Nothing End Sub '// '// 创建区域函数 '// '// 区域名称
'// 区域保存的文件名称 一般是 "区域名称.dns"
'// 返回错误信息
'// 返回操作是否成功 Public Function CreateZone(ByVal sZoneName As Variant, ByVal sDataFileName As Variant, ByRef errMsg As Variant) As Variant Set objInst = SelectRR("MicrosoftDNS_Zone", " ContainerName=" & Chr(34) & sZoneName & Chr(34), errMsg) If errMsg <> "" Then CreateZone = False Exit Function End If If objInst.Count > 0 Then errMsg = "该区域已存在" CreateZone = False End If Set objInst = Nothing Dim oParams As New Dictionary oParams.Add "ZoneName", sZoneName '这是因为win2003和win2000系统中CreateZone函数的zoneType参数不一致 PrimaryZone的值在2000中是1，在2003中是0 If IsWin2k3() Then zoneType = 0 Else zoneType = 1 End If oParams.Add "ZoneType", zoneType CreateZone = Create("MicrosoftDNS_Zone", "CreateZone", oParams, errMsg) Set oParams = Nothing End Function '// '// 删除一个区域 '// '// 要删除区域的域名
Public Function DeleteZone(ByVal sContainerName As Variant, ByRef errMsg As Variant) As Variant DeleteZone = Delete("MicrosoftDNS_Zone", "ContainerName", sContainerName, errMsg) End Function '// '// 添加A记录 '// '// 主机名称
'// 主机对应的IP
'// 所在区域的域名
Public Function CreateARecord(ByVal sHostName As Variant, ByVal sContainerName As Variant, ByVal sIPAddress As Variant, ByRef errMsg As Variant) As Variant If sHostName = "" Then sOwnerName = sContainerName Else sOwnerName = sHostName & "." & sContainerName End If Set objInst = SelectRR("MicrosoftDNS_AType", " ownerName=" & Chr(34) & sOwnerName & Chr(34), errMsg) If errMsg <> "" Then CreateARecord = False Exit Function End If If objInst.Count > 0 Then errMsg = "该记录已存在" CreateARecord = False End If Set objInst = Nothing Dim oParams As New Dictionary oParams.Add "ContainerName", sContainerName oParams.Add "OwnerName", sOwnerName oParams.Add "IPAddress", sIPAddress CreateARecord = Create("MicrosoftDNS_AType", "CreateInstanceFromPropertyData", oParams, errMsg) Set oParams = Nothing End Function '// '// 修改A记录信息 '// '// 主机全名 比方说 www.mglz.net
'// 主机对应的IP
Public Function ModifyARecord(ByVal sOwnerName As Variant, ByVal sIPAddress As Variant, ByRef errMsg As Variant) As Variant Dim oParams As New Dictionary oParams.Add "IPAddress", sIPAddress ModifyARecord = Modify("MicrosoftDNS_AType", "OwnerName", sOwnerName, "Modify", oParams, errMsg) Set oParams = Nothing End Function '// '// 删除A记录记录 '// '// 主机全名 比方说 www.mglz.net
Public Function DeleteARecord(ByVal sOwnerName As Variant, ByRef errMsg As Variant) As Variant DeleteARecord = Delete("MicrosoftDNS_AType", "OwnerName", sOwnerName, errMsg) End Function '// '// 添加MX记录 '// '// 主机名称
'// 所在区域的域名
'// 要转向到的邮件服务器
'// 优先级
Public Function CreateMXRecord(ByVal sHostName As Variant, ByVal sContainerName As Variant, ByVal sMailServer As Variant, ByVal sPreference As Variant, ByRef errMsg As Variant) As Variant If sHostName = "" Then sOwnerName = sContainerName Else sOwnerName = sHostName & "." & sContainerName End If Set objInst = SelectRR("MicrosoftDNS_MXType", " ownerName=" & Chr(34) & sOwnerName & Chr(34), errMsg) If errMsg <> "" Then CreateMXRecord = False Exit Function End If If objInst.Count > 0 Then errMsg = "该记录已存在" CreateMXRecord = False End If Set objInst = Nothing Dim oParams As New Dictionary oParams.Add "ContainerName", sContainerName If sHostName = "" Then oParams.Add "OwnerName", sContainerName Else oParams.Add "OwnerName", sHostName & "." & sContainerName End If oParams.Add "Preference", sPreference oParams.Add "MailExchange", sMailServer CreateMXRecord = Create("MicrosoftDNS_MXType", "CreateInstanceFromPropertyData", oParams, errMsg) Set oParams = Nothing End Function '// '// 修改MX记录 '// '// 主机全名 比方说 www.mglz.net
'// 要转向到的邮件服务器
'// 优先级
Public Function ModifyMXRecord(ByVal sOwnerName As Variant, ByVal sMailServer As Variant, ByVal sPreference As Variant, ByRef errMsg As Variant) As Variant Dim oParams As New Dictionary oParams.Add "MailExchange", sMailServer oParams.Add "Preference", sPreference ModifyMXRecord = Modify("MicrosoftDNS_MXType", "OwnerName", sOwnerName, "Modify", oParams, errMsg) Set oParams = Nothing End Function '// '// 删除MX记录 '// '// 主机全名 比方说 www.mglz.net
Public Function DeleteMXRecord(ByVal sOwnerName As Variant, ByRef errMsg As Variant) As Variant DeleteMXRecord = Delete("MicrosoftDNS_MXType", "OwnerName", sOwnerName, errMsg) End Function '// '// 添加别名 '// '// 别名
'// 所在区域的域名
'// 目标主机名称
Public Function CreateCName(ByVal sHostName As Variant, ByVal sContainerName As Variant, ByVal sPrimaryName As Variant, ByRef errMsg As Variant) As Variant If sHostName = "" Then sOwnerName = sContainerName Else sOwnerName = sHostName & "." & sContainerName End If Set objInst = SelectRR("MicrosoftDNS_CNAMEType", " ownerName=" & Chr(34) & sOwnerName & Chr(34), errMsg) If errMsg <> "" Then CreateCName = False Exit Function End If If objInst.Count > 0 Then errMsg = "该记录已存在" CreateCName = False End If Set objInst = Nothing Dim oParams As New Dictionary oParams.Add "ContainerName", sContainerName If sHostName = "" Then oParams.Add "OwnerName", sContainerName Else oParams.Add "OwnerName", sHostName & "." & sContainerName End If oParams.Add "PrimaryName", sPrimaryName CreateCName = Create("MicrosoftDNS_CNAMEType", "CreateInstanceFromPropertyData", oParams, errMsg) Set oParams = Nothing End Function '// '// 修改别名 '// '// 别名全称 比方说 www.mglz.net
'// 目标主机名称
Public Function ModifyCName(ByVal sOwnerName As Variant, ByVal sPrimaryName As Variant, ByRef errMsg As Variant) As Variant Dim oParams As New Dictionary oParams.Add "PrimaryName", sPrimaryName ModifyCName = Modify("MicrosoftDNS_CNAMEType", "OwnerName", sOwnerName, "Modify", oParams, errMsg) Set oParams = Nothing End Function '// '// 删除别名 '// '// 别名全称 比方说 www.mglz.net
Public Function DeleteCName(ByVal sOwnerName As Variant, ByRef errMsg As Variant) As Variant DeleteCName = Delete("MicrosoftDNS_CNAMEType", "OwnerName", sOwnerName, errMsg) End Function Private Function Create(ByVal sTableName As String, ByVal MethodName As String, ByRef oParms As Dictionary, ByRef errMsg As Variant) As Boolean On Error GoTo ll Set oProcess = objService.Get(sTableName) Set oInParams = oProcess.Methods_(MethodName).InParameters.SpawnInstance_() For Each Key In oParms.Keys oInParams.Properties_.Item(Key).Value = CStr(oParms.Item(Key)) Next objService.ExecMethod sTableName, MethodName, oInParams errMsg = "" Create = True Exit Function ll: Create = False errMsg = Err.Description End Function Private Function Modify(ByVal sTableName As String, ByVal sFieldName As String, ByVal sFieldValue As String, ByVal MethodName As String, ByRef oParams As Dictionary, ByRef errMsg As Variant) As Boolean Dim sQuery As String sQuery = "SELECT * FROM " & sTableName & " WHERE " & sFieldName & " = '" & sFieldValue & "'" On Error GoTo ll Set objInst = objService.ExecQuery(sQuery) For Each o In objInst Set oInParams = o.Methods_(MethodName).InParameters.SpawnInstance_() For Each Key In oParams.Keys oInParams.Properties_.Item(Key).Value = CStr(oParams.Item(Key)) Next o.ExecMethod_ MethodName, oInParams Next errMsg = "" Modify = True Exit Function ll: Modify = False errMsg = Err.Description End Function Private Function Delete(ByVal sTableName As String, ByVal sFieldName As String, ByVal sFieldValue As String, ByRef errMsg As Variant) As Boolean Dim sQuery As String sQuery = "SELECT * FROM " & sTableName & " WHERE " & sFieldName & " = '" & sFieldValue & "'" On Error GoTo ll Set objInst = objService.ExecQuery(sQuery) For Each o In objInst o.Delete_ Next errMsg = "" Delete = True Exit Function ll: Delete = False errMsg = Err.Description End Function Private Function SelectRR(ByVal recordType As String, ByVal sFilterExpression As String, ByRef errMsg As Variant) As Object On Error GoTo ll errMsg = "" sql = "Select * from " & recordType If sFilterExpression <> "" Then sql = sql & " where " & sFilterExpression End If Set SelectRR = objService.ExecQuery(sql) errMsg = "" Exit Function ll: errMsg = Err.Description Set SelectRR = Nothing Err.Clear End Function end Class
