--- Jim Lucas <[EMAIL PROTECTED]> wrote:
> what about checking the checking the remote ip
> address?

The common use of HTTP proxies on the Web makes this
extremely unreliable.

A typical HTTP proxy servicing many users will cause them
all to appear to be coming from the same IP address, while
round-robin HTTP proxies (like AOL's) will make a single
person appear to be coming from many different IP
addresses.

Chris

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