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lang: ja-jp
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# Ubuntu ホスト名の変更　2021-04-14

$ hostnamectl set-hostname ubuntu-vm
==== AUTHENTICATING FOR org.freedesktop.hostname1.set-static-hostname ===
静的なホスト名を設定するには認証が必要です。
Authenticating as: xxxxxxxx,,, (xxxxxxxx)
Password:
==== AUTHENTICATION COMPLETE ===

$ hostname
ubuntu-vm

$ hostnamectl
   Static hostname: ubuntu-vm
         Icon name: computer-vm
           Chassis: vm
        Machine ID: f7f3814334be46e4b016979de7a8e91f
           Boot ID: b44824ae6dbb47a89f7cb75d9ff3b919
    Virtualization: microsoft
  Operating System: Ubuntu 20.10
            Kernel: Linux 5.8.0-49-generic
      Architecture: x86-64

###### tags: `Ubuntu`