Linux driver for USB network adapters purchased from internet: http://www.ebay.com/itm/External-USB-to-Lan-RJ45-Ethernet-Network-Card-Adapter-10-100-Mbps-for-Laptop-PC-/170896745782?pt=US_USB_Wi_Fi_Adapters_Dongles&hash=item27ca3d6536 and http://dx.com/p/usb-2-0-to-10-100m-rj45-ethernet-network-adapter-dongle-black-161542