前些天临时写的一脚本级反向代理程序，用法很简单，设置好目标站地址，然后放到你网站根目录：index.asp，再将404页面自定义为：index.asp，即可。
由于暂时没有 url 替换需要，所以没有写 url 替换规则，如果你有需要的话，可以在末尾写个函数替换 http.ResponseBody 中的内容。
<%
'**************************************************
'Asp反向代理程序，调用远程站点全站数据，脚本级反向代理，一款脚本级反向代理程序
'By: Nuclear'Atk, http://lcx.cc/
'Created: 2014-03-27 19:30:56
'Last Update: 2014-3-28 11:10:56
'************************************************** 'On Error Resume Next
Server.ScriptTimeout = '---------- '组合Url地址 Dim url If Instr(Request.QueryString, "404;http://") > Then '提取参数
url = Mid(Request.QueryString, Len("404;http://" & Request.ServerVariables("HTTP_HOST") & ":" & Request.ServerVariables("Server_Port") & "/") + )
Else
If Request.QueryString <> "" Then
url = "?" & Request.QueryString
End IF
End IF url = "http://lcx.cc/" & url '完整地址 '---------- '获取远程数据 Dim http
Set http = Server.CreateObject("WinHttp.WinHttpRequest.5.1") http.Open "GET", url, False
If Request.ServerVariables("HTTP_REFERER") <> "" then
http.SetRequestHeader "Referer", Request.ServerVariables("HTTP_REFERER")
End IF
If Request.Cookies <> "" then
http.SetRequestHeader "Cookie", Request.Cookies
End IF
http.SetRequestHeader "User-Agent", Request.ServerVariables("HTTP_USER_AGENT")
http.SetRequestHeader "X-Forwarded-For", Request.ServerVariables("REMOTE_ADDR") & ", " & Request.ServerVariables("LOCAL_ADDR")
http.SetRequestHeader "Connection", "Close"
http.SetRequestHeader "Nuclear-Atk", "http://" & Request.ServerVariables("HTTP_HOST") & Request.ServerVariables("SCRIPT_NAME") & "?" & Request.QueryString
http.SetRequestHeader "Nuclear-Atk-Host", Request.ServerVariables("HTTP_HOST")
http.Send Response.Status = http.Status & " " & http.StatusText '照搬远程HTTP状态码与状态描述文本
Response.ContentType = http.GetResponseHeader("Content-Type") '照搬远程内容类型
Response.BinaryWrite http.ResponseBody '输出二进制内容
%>