[Gameluner]

You can use this:

Код:

stock pName(playerid)
{
    new n[25];
    GetPlayerName(playerid,n,sizeof(n));
    return n;
}

public OnPlayerConnect(playerid)
{
    if(strcmp(pName(playerid),"Nick1") || 
    strcmp(pName(playerid),"Nick2")    ||
    strcmp(pName(playerid),"Nick3")     )
    {
        Kick(playerid);
    }
    return 1;
}

Or make a whitelist using news.