How to Change Hostname

How to Change Hostname: A computer system on a network is known by its hostname, which is a name made up by the user. In Ubuntu 20.04, users give the computer a hostname when they set up the OS. There are many reasons why you might want to change your computer’s hostname.

Need to change the Mac’s hostname? Most people can change the name of their Mac computer very quickly and easily through the Sharing system preference. For those of us who like to do things in a geeky way, we like to use the Terminal.

How to Change Hostname on Linux

Using the hostname CTL Command

Modern Linux distributions come with systemd, which is a system and service manager that comes with the hostnamectl command already installed.

1. Open the terminal.
2. Log in to your Linux server via SSH.
3. If your system doesn’t have systemd, use this command to install it and press Enter:
   • apt-get install systemd
4. Once the installation is complete, type the following command to view the current hostname and hit Enter:
   • hostnamectl
5. Here’s how the output looks like
6. On the output, the current hostname is listed as the static hostname. To change it permanently, insert the following command – using your new desired hostname – and hit Enter:
   • hostnamectl set-hostname hostname
7. The command above does not produce an output. Therefore, to verify the new hostname, run the command below and press Enter:
   • hostnamectl

How to Change Hostname on Windows

• Open the properties of Computer or My Computer or This PC based on your operating system version.
• Click on change settings hyperlink under computer name, domain and workgroup settings section.
• The above will open a new dialog box. In the Computer Name tab click Change button in front of “To rename this computer or change its domain or workgroup”.
• You will see another dialog box with an input box. Here set a new name for the Windows hostname and click OK.
• A dialog box will open to allow the system to reboot immediately or reboot it manually latest. Select an option of your choice.
• In some of the operating system versions, You will not see a later reboot option. The system will ask you to save any unsaved files and restart the system immediately.
• Once the Windows system rebooted, check the new hostname with a command prompt
• All done

you can visit on Microsoft Support center for further help

How to Change Hostname On Mac

• The initial stage of this process involves you clicking on the Apple Logo > System Settings menu.
• and selecting the “General” option in the drop-down menu. Now, you are required to click on the “Sharing” action to open the sharing settings window of your MacBook.
• Then, Just below the Computer name, See “Computers on your local network can access your computer at: Computer_name.local“.
• At last, click on “Edit” and type the new local hostname of your MacBook before the “.local” extension in the typing field.
• Click on Ok.

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