用在所有的网页(都是ASP的)的文件头加入下面的东东。
<%
if Request.ServerVariables("SERVER_NAME")="www.123.com" then
response.redirect "http://www.123.com/123/"
else
response.redirect "http://www.456.com/456/"
end if
%>
<%
if Request.ServerVariables("SERVER_NAME")="www.5i5w.com" then
response.redirect "http://www.5i5w.com/"
else
response.redirect "default.htm"
end if
%>