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用ASP做的DNS LOOKUP程序

 2001-02-19 10:58:59 来源:WEB开发网   
核心提示:文章转译自asp101运行环境,NT(SERVER、WORKSTATION)、W2K服务器上需要安装WSH2.0或者更高版本如果您的系统目前没有安装WSH2.0,用ASP做的DNS LOOKUP程序,您可以从以下这个地址去下载它http://www.microsoft.com/msdownload/vbscript/s
文章转译自asp101

运行环境,NT(SERVER、WORKSTATION)、W2K

服务器上需要安装WSH2.0或者更高版本

如果您的系统目前没有安装WSH2.0,您可以从以下这个地址去下载它

http://www.microsoft.com/msdownload/vbscript/scripting.asp

里面包含了WSH2.0

下面是源代码

<%@ Language="VBScript" %>
<% Option Explicit %>
<%
If Request.Form("frmHost") = "" Then
  '设置初始值
  strIP = Request.ServerVariables("REMOTE_ADDR")
Else
  strIP = Request.Form("frmHost")
End If
%>
<html>
<head>
  <title>DNS Lookup [v 1.0]</title>
</head>
<body bgcolor="#FFFFFF">

<form Method="POST" Name="frmRDNS">
  <label for="frmHost"><u>Host:</u></label>
  <input type="text" name="frmHost" ID="frmHost"
    value="<%= strIP %>">
  <input type="button" name="btnSubmit" ID="btnSubmit"
    value="Lookup" onClick="document.frmRDNS.submit()">
</form>

<font face="arial" size="2" color="#003366">
<%
rMethod = uCase(Request.ServerVariables("REQUEST_METHOD"))
If rMethod = "POST" Then
  ' Lookup Host
  strReturn = nsLookup(strIP)
  If strReturn <> "" Then
    Response.Write strReturn
  Else
    ' A Lame Host is any Valid Host that DNS Cannot Resolve
    ' See InterNic for Details
    Response.Write "<b>Lame Host - Could Not Resolve DNS For " _
      & strIP & "</b><br>"
  End If
End If

Function NSlookup(strHost)
  'Create Shell Object
  Set oShell = Server.CreateObject("Wscript.Shell")
  'Run NSLookup via Command PRompt
  'Dump Results into a temp text file
  oShell.Run "%ComSpec% /c nslookup " & strHost _
    & "> C:\" & strHost & ".txt", 0, True

  'Open the temp Text File and Read out the Data
  Set oFS = Server.CreateObject("Scripting.FileSystemObject")
  Set oTF = oFS.OpenTextFile("C:\" & strHost & ".txt")

  tempData = Null
  Data = Null
  i = 0
  Do While Not oTF.AtEndOfStream
    Data = Trim(oTF.Readline)
      If i > 2 Then ' Don't want to display local DNS Info.
        tempData = tempData & Data & "<BR>"
      End If
    i = (i + 1)
  Loop

  'Close it
  oTF.Close
  'Delete It
  oFS.DeleteFile "C:\" & strHost & ".txt"

  Set oFS = Nothing
  nsLookup = tempData
End Function
%>
</font>

</body>
</html>

代码很简单,我不多说了,如果您对WSH有什么疑问的话,请去下载WSH的电子文档中文版本的,CHINAASP下载区就有的吧

希望能对你有所帮助。

Tags:ASP DNS LOOKUP

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