MySql too Many Connections

[HoMyGod]

Hi,

I would like to know if it is possible to protect a server again a "flood" of connections...
I mean I know it is possible that someone run a kind of script on his machine, and the effect of this script is to open several connections on a website (as if you open thousands of browser that connects on the same website). The result of this operation is a number of connection on your database that increase...until the max_connection number. And it increase your logs files too.

My question : Is it possible to automaticaly detect the source of the "flood" and to prevent such a problem?

Thank you