[Xeon™]

Hai!

you must set a maxium amout of players that can connect from 1 IP

i suggest to you to use this include

FAQ: how?

include this inc file ^
and put this anywhere in your script

PHP код:

public OnPlayerFloodControl(playerid, iCount, iTimeSpan) // iCount is players that joined, in iTimeSpan time millseconds)
{
    if(iCount > 3 && iTimeSpan < 8000) // if 3 players joined in less than 8 seconds it ban the player
    {
        Ban(playerid);
    }
}