Track user By IP, Cache, Computer ID?

I don’t know if the feature exist or not, but here the suggestion:

  • Some forum like vbulletin have tracking system by track their ip and browser cookies,

The reason why is because, there may troller and spammer using another username to register on our forum. so Instead looking at their ip address and match one by one, why dont just add feature like “user with same ip and browser (probable same person)”

You can reduce the Max logins per IP and Max logins per IP per hour settings to 1 and maybe max New registrations per IP as well

Have you looked at the admin user page and see that the IP is there?