Network device

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A network device or Network interface card (NIC) is a device used for networking. However, it is not, as other Linux devices, situated in /dev, it is typically called eth0, eth1 or the like. You can:

  • start and stop your device
ifup eth0
ifdown eth0
  • read from and send to your device using netcat
  • test if a cable is plugged in using ethtool