https://blog.faceutil.com/2020/04/24/%eb%a6%ac%ec%96%bc%ed%85%8d-%eb%9e%9c%ec%b9%b4%eb%93%9c-%eb%93%9c%eb%9d%bc%ec%9d%b4%eb%b2%84-realtek-rtl8139-serials-pci-fast-ethernet-nic-driver-v504-%d1%8a/