Limit the users to one account

[LtRaven]

I'm working to an online game and I want to limit the users to one accont.
From what I know, I can't use ip detection, because of the big LAN's.
If you can help me, please send a mail to croitoru_gabriel@yahoo.com .
2x.

[webgovernor]

I'll send an email too,
but here's the info.

Most places (online games) use an email system,
about a year ago, I helped write some code for
kingdommaster.com, which is now an online forum.
(kingdommaster.com/phpBB2)

Anyway, if you go with IP Detection, you'll have to worry
about 56K, ADSL, and dynamic ip users...

IF you go with email, you can always force users to
get an email address without @yahoo or @hotmail, this will
help prevent people from signing new emails for new accounts.
(with the exception of aol)...

Also, cookies per account, if a person has a cookie on thier PC with
the info from an account different from the one they tried to login
with, you can shut down both accounts.

That's all I know of, if you know of another way, then please tell me...

Maybe IP range?

Or, user_agent (OS Kernel, Browser, etc...)?

I dunno, but
good luck!

[Nevermore]

1) Disallowing certain accounts will reduce your sites appeal massively
2) You can't do the cookie thing - what about shared computers?
3) user_agent - same, plus it's not specific enough

Ther is no way to automatically do this - the game I coded along the same lines flagged up warnings for the admin to deal with.