public function checkUsingSystemPing(){
		$response = NULL;
		@exec( "ping -c 1 google.com 2>&1 1> /dev/null", $response, $code );
//		@system( "ping -c 1 1111google.com &2>1 &1>/dev/null", $code );
		if( $code == 0 )
			$this->status = self::STATUS_ONLINE;
		else
			$this->status = self::STATUS_OFFLINE;
	}