I'm using mod_rewrite to point a url to another site. Proxy mode, no 3xx. Is HTTP_X_FORWARDED a reliable way for the target site to determine where the user was sent from? I know that things like HTTP_REFERER are not because they come from the client. However, I'm thinking that the same wouldn't hold here because the forwarding in proxy mode is handled by the server anyway (yes?).
Sure - that's as good as you're going to get. Check out http://www.cgsa.net/php/identifierShow.php ~HN Will