Hostnamectl

Show current hostname settings

# hostnamectl status
 Static hostname: server01
       Icon name: computer-vm
         Chassis: vm
      Machine ID: edf68d20a678412a8ac9a1a50d7749e1
         Boot ID: f39133bbc39c47778049435ce49088e6
  Virtualization: kvm
Operating System: Ubuntu 22.04.3 LTS              
          Kernel: Linux 6.2.0-36-generic
    Architecture: x86-64
 Hardware Vendor: Fedora Project
  Hardware Model: OpenStack Nova