我们将应用程序移至其他服务器，并closures旧服务器上的IIS中的站点。 它似乎仍然有networking爬虫（Googlebot，百度等）尝试旧的IP地址，所以他们得到一个404错误。 我们希望他们得到一个503错误，以便他们稍后再尝试，这将给DNS更多的时间来传播。 有没有一个简单的/直接的方式与IIS6做到这一点？
今晚我正在将几个网站迁移到今晚的新服务器上，从IIS 6（Windows 2003服务器）迁移到IIS 7.5（Windows 2008 Server），并更改IP地址，并担心networking爬虫。 一位朋友指出，如果我使旧服务器上的应用程序池脱机并离开网站，那么即使您尝试使用IP地址访问它们，网站也会返回503个错误代码，直到DNS传播。 似乎工作很好。
（我知道这是一个很晚的post，但我花了几个小时寻找一个解决scheme，所以我想我会在这里添加它。）
您可以创build一个“全部抓取”页面并添加以下的asp代码：
context.context.Response.StatusCode = (int)HttpStatusCode.ServiceUnavailable; 这在IIS 6和IIS 7 。
这是为我的特定商店（ASPDotNetStorefront），如你所见，修改。
web.config中
<?xml version="1.0" encoding="UTF-8"?> <configuration> <system.web> <customErrors defaultRedirect="/404handler.asp" mode="On" /> </system.web> </configuration>
404handler.asp
<%@ Language=VBScript %> <% Option Explicit Sub Redirector() Dim strRequest Dim strRedirect Dim strServer Dim objRegExp Dim tokens strServer = "http://mynewurl.example.com" strRequest = Request.QueryString("aspxerrorpath") If StrComp(strRequest, "") = 0 Then strRequest = Request.QueryString strRequest = Mid( strRequest, Instr( Instr(1, strRequest, "://") + 3, strRequest, "/")) End If Set objRegExp = New RegExp objRegExp.IgnoreCase = True 'Product Page objRegExp.Pattern = "^/p-[0-9]+-.*\.aspx$" If objRegExp.Test(strRequest) Then strRedirect = strServer + strRequest Call DoResponse(strRedirect) End If 'Product Print Page objRegExp.Pattern = "^/print-([0-9]+)-(.*)\.aspx$" Set tokens = objRegExp.Execute(strRequest) If tokens.Count > 0 Then strRedirect = strServer + "/p-" + tokens(0) + "-" + tokens(1) + ".aspx?print=1" Call DoResponse(strRedirect) End If 'Product Email Page objRegExp.Pattern = "^/email-([0-9]+)-(.*)\.aspx$" Set tokens = objRegExp.Execute(strRequest) If tokens.Count > 0 Then strRedirect = strServer + "/p-" + tokens(0) + "-" + tokens(1) + ".aspx" Call DoResponse(strRedirect) End If ' Signin Page objRegExp.Pattern = "^/signin.aspx(\?.*)?$" Set tokens = objRegExp.Execute(strRequest) If tokens.Count > 0 Then strRedirect = strServer + strRequest Call DoResponse(strRedirect) End If 'Manufacturer Page objRegExp.Pattern = "^/m-[0-9]+-.*\.aspx(\?.*)?$" If objRegExp.Test(strRequest) Then strRedirect = strServer + Replace(strRequest, "CatID", "FilterID", 1, -1, vbTextCompare) Call DoResponse(strRedirect) End If 'Category Page objRegExp.Pattern = "^/c-[0-9]+-.*\.aspx(\?.*)?$" If objRegExp.Test(strRequest) Then strRedirect = strServer + Replace(strRequest, "ManID", "FilterID", 1, -1, vbTextCompare) Call DoResponse(strRedirect) End If 'Other ASPX Pages objRegExp.Pattern = "^/.*\.aspx(\?.*)?$" If objRegExp.Test(strRequest) Then Dim Message, a Message = "Original request was: " + strRequest + vbCrLf + vbCrLf + "Info:" Message = Message + vbCrLf + " " + Request.ServerVariables("ALL_HTTP") Message = Message + vbCrLf + " Client: " + Request.ServerVariables("REMOTE_ADDR") Call SendEmail("[email protected]", "[email protected]", "Missed ASPX 404 Error", Message) 'Response.Write(Message) End If ' Ignore errors for non-aspx pages End Sub Sub SendEmail(seTo,seFrom,seSubject,seBody) on error resume next Dim EmailObj, iConf, Flds Set EmailObj = Server.CreateObject("CDO.Message") Set iConf = CreateObject("CDO.Configuration") Set Flds = iConf.Fields Flds.Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2 Flds.Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "localhost" Flds.Update EmailObj.Configuration = iConf EmailObj.From = Chr(34) & seFrom & Chr(34) & Chr(60) & seFrom & Chr(62) EmailObj.ReplyTo = Chr(34) & seFrom & Chr(34) & Chr(60) & seFrom & Chr(62) EmailObj.Subject = seSubject EmailObj.Fields.Update EmailObj.TextBody = seBody EmailObj.To = Chr(34) & seTo & Chr(34) & " <" & seTo & ">" EmailObj.Send Set EmailObj = nothing on error goto 0 End Sub Sub DoResponse(strRedirect) If StrComp(strRedirect, "") <> 0 Then Response.Status = "301 Moved Permanently" Call Response.AddHeader("Location", strRedirect) Call Response.Write("<html><head><title>Page moved</title></head>") Call Response.Write("<body><h1>Page Moved</h1>") Call Response.Write("This page may be found at <a href=""" & strRedirect & """>" & strRedirect & "</a>.") Call Response.Write("</body></html>") Call Response.End End If End Sub Call Redirector() Response.Status = "404 File not found" %><?xml version="1.0" encoding="UTF-8" standalone="no" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>The Page Cannot be Found</title> <meta name="robots" content="noindex"></meta> <style> <!-- BODY { FONT-FAMILY: Verdana, Arial, Helvetica, sans-serif } H1 { COLOR: #cd5c5c } H2 { COLOR: #cd5c5c } TABLE { WIDTH: 540px } --> </style> </head> <body> <table> <tr> <td> <h1>The Page Cannot be Found</h1> <hr /> <h2>Potential Causes:</h2> <ul> <li>The requested file has been deleted.</li> <li>The requested file has never existed.</li> <li>The requested file is temporarily unavailable due to maintenance, upgrades, or other similar reasons.</li> <li>The requested file has moved, and we didn't automatically forward to the new page.</li> </ul> <hr /> <h2>Please try the following:</h2> <ul> <li>If you typed the page address into the web browser, make sure that you spelled it correctly.</li> <li>Open the <a href="http://mynewurl.example.com/">home page</a> of this site.</li> <li>Click the Back button to try another link.</li> </ul> <hr /> <h2>HTTP 404 - File not found</h2> </td> </tr> </table> </body> </html>
你知道什么会更容易？ 只要您不希望您的网站被search引擎漫游器抓取，请将其放在/robots.txt中：
User-Agent: * Disallow: /