![]() ![]() Reboot to make sure that your configs are valid and that the change will survive a reboot.Ĭheck your hostname to verify that it was in fact changed to what you want. This will immediately change the hostname and update the configuration in the /etc/hostname file but may not necessarily update the /etc/hosts file for you.Īlternative Method to Change Hostname on LinuxĬhange your hostname now with this command:Ĭhange the hostname in this file ( swap old name for new ):Ĭhange it in this file as well ( swap old name for new ): ) you can use the hostnamectl command to change your hostname like this. If you are running systemd ( modern Ubuntu/Debian systems, Arch, Red Hat, etc. If you are running systemd ( modern Ubuntu/Debian systems, Arch, Red Hat, etc. Fortunately this is relatively easy to do. On Debian Linux hostnamectl command used to query and change the system hostname and related settings.If you are setting up or managing a Linux system there is a good chance that you will want to change the hostname at some point. One can see help page by passing the –help option to the hostnamectl as follows: $ hostnamectl -help Conclusion ![]() The hostnamectl tool will use SSH to connect to the remote system. Changing Debian host names remotely using sshįrom Linux desktop or server, run: $ hostnamectl set-hostname -H hostnamectl set-hostname -H ![]() Edit the /etc/hostname file write your system hostname there as show. We can enter the below command for editing the /etc/hostname file using vi or nano text editor: sudo nano /etc/hostname 2. For example, we can change the system static hostname to linuxconcept by using the. You should see your new server name printed on the console. You can also change your system hostname manually by editing configuration file directory. You can change the hostname in Debian 10 using the hostnamectl command. ![]() To verify that the hostname was successfully changed, once again use the hostnamectl command: $ hostnamectl Static hostname: # The following lines are desirable for IPv6 capable hosts 31 Similarly to hostname that can be changed in different ways: temporarily using the hostname command permanently using /etc/hostname (or /etc/sysconfig/network or /etc/HOSTNAME, these files are used by the init scripts) I want to change my domain name. Next, edit the /etc/hosts file, run: $ vi /etc/hostsįind all references to oldname and replace with newname except for the following entries: 127.0.0.1 localhost First, set the new hostname using the hostnamectl set-hostname command followed by the desired hostname and then update the /etc/hosts file with the new hostname. It is recommended to use a fully-qualified domain name ( FQDN) as the system hostname.įor example, to change the system hostname to in Debian 12, you can use the following command: $ sudo hostnamectl set-hostname There are two steps involved when changing the system hostname on Debian 10. Change the Hostname use hostnamectl set-hostnameĪ hostname is a label that identifies a machine on a network and should be unique within the network infrastructure. 1 Answer Sorted by: 1 The forums are correct the DNS domain name is taken from the hostname if present (although I find that things work better if it's inferred via /etc/hosts instead). Operating System: Debian GNU/Linux 12 (bookworm)Īs you can see in the image above, the current hostname is set to localhost. Command 1: Using the hostname Command Utility. Different commands are used to change the hostname using the terminal which are explained in the next section. Machine ID: 34fdfb323daa4e5c9afa8c53fb17b99eīoot ID: d6663d2eed24496f90aaf7b615a8f67d To change the hostname by executing some commands, a terminal of Debian 12 can be used. To view the current hostname, enter the following command: $ hostnamectl Static hostname: localhost Display the current hostname for Debian Linux ![]()
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