除了用于跟踪的IP地址之外，是否还有计算机特定信息？

Question

I am developing a program to that only allows the same computer to view a specific page once, and after that I am blocking access to that page.

My question is, the IP address works ok but some users have a new IP every time they visit the site. I have come across other sites in the past that use some other means of tracking users, as even with a different IP on the same computer I can't view restricted content.

Anyone have any thoughts?

What are the other option(s) to the IP Address?

Answer 1

There isn't one method that you can use to be unique to any one computer.

You can set a cookie on that browser, but the user could use another browser or just delete the cookie.

There are 3rd party services that run a flash module to get computer specific data to create a guid that you can use, but that's more expensive and also requires the user to load your flash module, which means it wouldn't work on some mobile browsers.