Hostnamectl

hostnameclt command included in the systemd package.

Examples

• Set hostname:
  • hostnamectl set-hostname NEW_SERVER_NAME.YOUR_DOMAIN.COM

• Read information:

hostnamectl
   Static hostname: VM_NAME1
Transient hostname: VM_NAME2
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 55b9165a7ae241bf9b59adaf1d93a867
           Boot ID: t46f00f0acda40a9b2aaecf3fec1b512
    Virtualization: vmware
  Operating System: Ubuntu 20.04.1 LTS
            Kernel: Linux 5.4.0-53-generic

/etc/cloud/cloud.cfg
preserve_hostname=true

Related terms

• virt-clone
• net-hostname (virt-sysprep)
• hostname: /etc/hostname
• /etc/hosts
• host

See also

• hostnamectl, cloud-init, /etc/cloud/cloud.cfg
• FQDN, DNS, hostname, dnsdomainname, domainname, hostnamectl, /etc/hostname, /etc/resolv.conf, /etc/systemd/resolved.conf, hostname -f
• Systemd: systemctl, systemd-journald, journalctl systemd-cat, systemd-logind, systemd-networkd:networkctl, systemd-timesyncd, systemd-resolved, systemd-udevd , Systemd-logind: loginctl, hostnamectl, udevadm, systemd-run, portablectl, systemd-nspawn, systemd resource management, Timer (systemd), systemd logs, /etc/systemd/, systemd services, systemd-mount, /run/systemd/, .service, /usr/lib/systemd/, /usr/lib/systemd/system/, /usr/lib/systemd/system/systemd-resolved.service, /lib/systemd/, machinectl, systemd-oomd, systemd-analyze

https://wiki.ubuntu.com/DebuggingSystemd