How to Change Hostname in AlmaLinux 8
Displaying the Current Hostname
Find out the hostname of your system by using the below command,
hostnamectl
Output:
[root@vps ~]# hostnamectl
Static hostname: vps.server.com
Icon name: computer-vm
Chassis: vm
Machine ID: 8adaa7bd77339b01baf08af96bad26e5
Boot ID: 77943c7642974555a05f635b40fa900d
Virtualization: kvm
Operating System: AlmaLinux 8.3 RC (Purple Manul)
CPE OS Name: cpe:/o:almalinux:almalinux:8.3:rc
Kernel: Linux 4.18.0-240.15.1.el8_3.x86_64
Architecture: x86-64
Changing the System Hostname
Now that you know the current hostname, you can change the hostname by using the following command and Optionally you can also set the pretty hostname as follows.
hostnamectl set-hostname crowncloud.net
hostnamectl set-hostname "crowncloud production server" --pretty
Next, add the record for the hostname in the /etc/hosts
file.
127.0.0.1 crowncloud.net
Edit the file using your favorite editor.
nano /etc/hosts
After you've added / edited the file, save and exit the file.
Output:
[root@vps ~]# cat /etc/hosts
127.0.0.1 crowncloud.net
This will also add an entry to the /etc/hostname
file automatically.
Restart the systemd-hostnamed
service.
systemctl restart systemd-hostnamed
Alternatively Set or Change Hostname
Alternatively, you can set or change the hostname of your system using NetworkManager's Text User Interface. Run the following command and follow steps as shown below,
nmtui
Select set system hostname.
Enter the new hostname.
Restart the systemd-hostnamed
service.
systemctl restart systemd-hostnamed
Verify the Change
To verify the hostname has been fully changed, enter the hostnamectl
command.
[root@vps ~]# hostnamectl
Static hostname: crowncloud.net
Pretty hostname: crowncloud production server
Icon name: computer-vm
Chassis: vm
Machine ID: 8adaa7bd77339b01baf08af96bad26e5
Boot ID: 77943c7642974555a05f635b40fa900d
Virtualization: kvm
Operating System: AlmaLinux 8.3 RC (Purple Manul)
CPE OS Name: cpe:/o:almalinux:almalinux:8.3:rc
Kernel: Linux 4.18.0-240.15.1.el8_3.x86_64
Architecture: x86-64
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