• Newsticker

    Rabu, 30 Mei 2018

    Ubuntu Linux Change Hostname (computer name)

    am a new Ubuntu Linux laptop user. I setup my computer name to ‘tom’ during installation but now I would like to change the computer name to ‘jerry’. Can you tell me how do I I remove tom and set it to jerry on Ubuntu Linux? How do I change the Ubuntu computer name from ‘ubuntu’ to ‘AvlinStar’?

    You can use the hostname command to see or set the system’s host name. The host name or computer name is usually at system startup in /etc/hostname file. Open the terminal application and type the following command.

    Display the current Ubuntu hostname

    Simply type the following command:
    $ hostname
    Sample outputs:

    Fig.01: Ubuntu Linux Show the hostname/computer name command
    Fig.01: Ubuntu Linux Show the hostname/computer name command

    Ubuntu change hostname command

    The procedure to change the computer name on Ubuntu Linux:
    1. Type the following command to edit /etc/hostname using nano or vi text editor:
      sudo nano /etc/hostname
      Delete the old name and setup new name.
    2. Next Edit the /etc/hosts file:
      sudo nano /etc/hosts
      Replace any occurrence of the existing computer name with your new one.
    3. Reboot the system to changes take effect:
      sudo reboot
    Sample outputs:

    Gif 01: Ubuntu change the computer name demo
    Gif 01: Ubuntu change the computer name demo

    How to change the Ubuntu server hostname without a system restart?

    Type the following commands:
    $ sudo hostname new-server-name-here
    Next edit the /etc/hostname file and update hostname:
    $ sudo nano /etc/hostname
    Finally, edit the /etc/hosts file and update the lines that reads your old-host-name:
    $ sudo nano /etc/hosts
    From:
    127.0.1.1 old-host-name
    To:
    127.0.1.1 new-server-name-here
    Save and close the file.

    A note about hostnamectl command

    Systemd based Linux distor such as Ubuntu Linux 16.04 LTS and above can simply use the hostnamectl command to rename hostname. To see current setting just type:
    $ hostnamectl
    Sample outputs:
    Static hostname: nixcraft
             Icon name: computer-laptop
               Chassis: laptop
            Machine ID: 291893e6499e4d99891c3cf4b70a138b
               Boot ID: 9fda2365b77841649e40a141fde46537
      Operating System: Ubuntu 17.10
                Kernel: Linux 4.13.0-21-generic
          Architecture: x86-64
    To change hostname from nixcraft to viveks-laptop, enter:
    $ hostnamectl set-hostname viveks-laptop
    $ hostnamectl

    Sumber: https://www.cyberciti.biz/faq/ubuntu-change-hostname-command/

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