Question

I am trying to block a user’s PC permanently from using my website. Until now what I did is banning the IP address and setting a cookie which will automatically ban the IP address, if it changes. However some tricky users are nevertheless deleting the cookie and resetting their router, so they can write harmful comments on my website. Is there any other way of banning a user, other than with IP ban and cookies?
I read this question: https://stackoverflow.com/questions/3159160/how-to-definitively-ban-a-user-from-my-website-or-almost but it is not what I am looking for.

Answer 1

You could use evercookie, which is a lot harder to get rid of, but identifying individual PCs with certainty is not really possible, and that’s a very good thing because it would be the end of privacy.