CODEWITHSUNDEEP
phpauthenticationidentity
Slava Knyazev
Slava Knyazev

Reputation: 6081

Is it possible to identify every separate computer?

I am thinking of a very simple log in system that doesn't require a login, but instead a system with an id and store it in a database. Then when the user comes back to the website he gets matched with his unique ID and logged-in in that way.

I am trying to do this with php as much as possible, initially I wanted to do it by using the IP address but as some people pointed out, places such as campuses share the same IP for many, many users.

So is there any way to uniquely identify each computer without using cookies, sessions or anything else that is client-side. Preferably with php.

Upvotes: 1

Views: 84

Answers (1)

user4339647
user4339647

Reputation:

No it is completely impossible to do what you are asking. The only theoretical way would be, as you say - the MAC address but it is not sent in web requests.

Upvotes: 1

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