From owner-freebsd-questions Thu Jan 11 15:50:49 2001 Delivered-To: freebsd-questions@freebsd.org Received: from pinky.plambert.net (pinky.plambert.net [205.219.88.225]) by hub.freebsd.org (Postfix) with ESMTP id 38B7537B69D for ; Thu, 11 Jan 2001 15:50:32 -0800 (PST) Received: (from plambert@localhost) by pinky.plambert.net (8.11.1/8.9.3) id f0BNoSN88681 for freebsd-questions@FreeBSD.ORG; Thu, 11 Jan 2001 15:50:28 -0800 (PST) (envelope-from plambert) Date: Thu, 11 Jan 2001 15:50:28 -0800 From: "Paul M . Lambert" To: "'freebsd-questions@freebsd.org'" Subject: Re: Limiting number of downloads per user in Apache?? Message-ID: <20010111155028.B316@pinky.plambert.net> References: <3A5E42FB.D728F40F@i-clue.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 11 Jan 2001, Jim Freeze wrote: > With php you can track a visitors ip with $REMOTE_ADDR. > This should identify the user, even with multiple windows open. > > Jim It would seem so (and one doesn't need PHP to have access to the remote address, by the way). Unfortunately, hundreds of thousands of people are behind internet proxies; AOL, for example, has many millions of members, but only a few hundred thousand ip addresses. It's entirely possible that hundreds of different people using browsers on their own personal computers could have requests sent from the same IP address. It's more than possible, but in fact quite common. There is _no_ way to track users in a foolproof manner. Sorry. --plambert To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message