DNS on Ubuntu 18.04

For years it’s been simple to set up DNS on a Linux machine. Just add a couple of entries to /etc/resolv.conf and you’re done.

# Use Google's public DNS servers.

But things change and now it’s not that simple. If you now edit /etc/resolv.conf on Ubuntu you’ll find that the edits are ephemeral. If you restart (or even hibernate) your machine then they’ll be overwritten by default content.

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This is pretty simple to fix though.

  1. Install the resolvconf package.
sudo apt install resolvconf
  1. Edit /etc/resolvconf/resolv.conf.d/head and add the following:
# Make edits to /etc/resolvconf/resolv.conf.d/head.
  1. Restart the resolvconf service.
sudo service resolvconf restart

Fix should be permanent.


Source: DNS on Ubuntu 18.04 – datawookie

DNS on Ubuntu 18.04 was last modified: July 16th, 2021 by Jovan Stosic

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