I have two domains pointing to the same directory. I would like to direct all visitors that enters on one of the domains to the other. Is there a way to check wich domain the visitor is entering my side with?
<% Dim sDomain sDomain = Request.ServerVariables("HTTP_REFERER") If InStr(sDomain, "domain1.com") Then Response.Redirect "domain1.com" If InStr(sDomain, "domain2.com") Then Response.redirect "domain2.com" ... ... %>
if you have an NT Server this ASP script works perfect. What I do on one of my servers is this...
[code] <% sDomain = Request.ServerVariables("HTTP_REFERER") If InStr(sDomain, "domain1.com") Then Response.Redirect "www.basesite.com/domain1" If InStr(sDomain, "domain2.com") Then Response.Redirect "www.basesite.com/domain2" %>
The code runs on the server, not on the client. And it should be slightly altered to make the If InStr(...) > 0 (to be safe).
Here's what happens on your asp-enabled site, assuming default.asp is the default web page for your site and has the above code in it.
Your site visitor plonks "www.site1.com" into their browser. This calls up the page default.asp on the server. Since the page extension is .asp, that prompts the server to send the page to an isapi filter (a dll file) that process the .asp page. The asp.dll file executes the above code in the server, discovering that HTTP_REFERER is "www.site1.com". The code tests HTTP_REFERER to see what it is, and if it matches causes a 'response.redirect' to happen on the server.
The response.redirect sends back an HTTP error 304, 'object moved' to the client's browser with the redirected url, and the browser then goes to the redirected page. You don't need any script on the browser to make this happen.
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Posted - 06 March 2001 : 12:53:46
