UBB.threads PHP Forum Software Community Forums Resources and Customizing How Do I? Preventing AOL caching

On our forum we often have trouble makers that register, flame, bait, troll etc and ultimately get banned. They then re-register and the process goes around and around.

So far most of these users are coming from AOL and when I validate their signup IP I get many legitimate members as well.

I know this is due to AOL caching/Proxy and I'd like to force the user, at least on the signup/login portion to not allow the AOL proxy/cache to be used.

Information about AOL Proxy here.

Is it possible to do this with UBB? I notice that AOL's cache/proxy servers do not read HTML so it isn't a simple matter of putting a bit of META tag in the headers.

I wound up just blocking AOL from even registering on our board

I had considered that, but we do have a fair number of AOL users and even three of our moderators use AOL over in the UK.

I can understand that. What I did did not affect any existing users or staff, just new ones from registering.