Server crasher 1.3.2

Somebody crashes my server with this...
Is there any fix?

I am using bukkit 1.3.1 R 2.0.

 

Just ban IP I think.

 

He is with dinamyc ip,i have tried to ban him,but it does not help.

 

I highly doubt this is a Bukkit bug. Most likely you're just trying to get me a virus (in that case: I have a Mac).

Otherwise, get some good DDoS protection for your server and contact your host. If you're hosting on a home computer, hide your IP with a VPN (I don't know if that would affect the server).

 

there is no fix that i could find. sorry.
just one thing though, how do you know that its someone with that program that's doing it?

 

Because he told me!

 

so ban his account and install a plugin like NoMulti

 

Can somebody give me a link for a free ddos protection and do you think that will help?

His ip is changing every time when he restart his computer!

If somebody can solve the problem please post here or pm me!

EDIT by Moderator: merged posts, please use the edit button instead of double posting.