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Mark
Asked: 2018-03-24 09:56:23 +0800 CST

Why doesn't my /etc/network/interfaces show anything besides the loopback interface?

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My goal is to configure DNS servers on the client side.
I was following the guide at: https://help.ubuntu.com/lts/serverguide/network-configuration.html#name-resolution.
My /etc/network/interfaces looks nothing like the example in the guide.
When I cat /etc/network/interfaces, I get:
# interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback
and nothing else...

networking dns 16.04

1 Answers

  1. Best Answer

    I did the following, and it solved my issue:

    1. Edit /etc/network/interfaces, including these lines:
      dns-nameservers 192.168.1.2
      dns-search example.com
    2. Restart networking services: sudo ifconfig enp4s0 down && sudo ip addr flush dev enp4s0 && sudo ifconfig enp4s0 up
    3. Check that settings were applied: cat /etc/resolv.conf
      Name servers and search domain should be present.
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