Change Hostname on Ubuntu

In this tutorial, we will assume that the hostname you want is “pluto”.

For Ubuntu 12.04 (Precise Pangolin)

  1. On your SSH Terminal, type: hostname pluto
  2. Using nano, you can then type: nano /etc/hostname
  3. Type in pluto, then press Ctrl + X, then Y, then Enter.
  4. Now, again using nano, type nano /etc/hosts to edit the hosts file.
  5. Add another line on top, it should read: pluto
  6. Confirm your changes by typing hostname.

For Ubuntu 14.04 (Trusty Tahr) / 14.10 (Utopic Unicorn)

  1. Newer Ubuntu versions make it even easier, you can just type: hostnamectl set-hostname pluto
  2. Confirm your changes by typing hostname.

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