on my forum people register like normal but when i got to check the ip of the people everyone has the same ip as the server the forum is running on any idea's why ?
I would suspect that it's either a bot that's doing that or the same person using different names. I had that problem a while ago. And was getting pornography posted on my site.
If you want, you should be able to ban that IP address. I installed an anti-spam program and that put a quick stop to it.