Logging Users

[zooey]

Hello

I have a website www.TheDigitalHorse.com where I sell memberships and allow members to allow copyrighted information that I have illustrated with digital animations (FLASH)

My frontend is a ASP script where users sign up and pay with a credit card then get a username(email) and password that they can log on with.

I would like to be able to track who is logged in and track usage. I am trying to create a measure to see if I have duplicate users or people sharing user information. I would like to create a log file and another file where I can see if the same user is logged in at the same time.

I am a hack and I learn as I go so if you have suggestions or ideas or you know how to do this let me know as I will pay for help with this.

Regards

Robin

[Corey Bryant]

Not too sure if you are looking for ideas or coding. But one could be the IP address. Even if it is dynamic, most of the IP addresses are going to belong to a single IP, perhaps AOL. And then if that user is signing on 5 minutes later with a different IP, that could be one way.

And you can also use the http_user_agent as well.