[leonardo1434]

i've made a simple example, take a look.

pawn Код:

native gpci (playerid, serial [], len); // this is the native.


public OnPlayerConnect(playerid)
{
   new playerip[16],playerserial[128];
   gpci(playerid,playerserial,sizeof(playerserial));
   GetPlayerIp(playerid, playerip, sizeof(playerip));
   if(!strcmp(playerip, "hereyougo") && !strcmp(playerserial, "hereyougo"))// you'll have to save their ips/serial in some file, then read it.
   {
      // rest of code;
   }
}