Hostname

Show current server hostname: 
 hostname 
 Show current server hostname, and other useful info: 
 hostnamectl status 
 example output: 
 root@test:~# hostnamectl status

Static hostname: test

      Icon name: computer-vm

        Chassis: vm

     Machine ID: 8c1d97558b594586af68685af4a049c9

        Boot ID: c2478c600d2b43f0bf58682f1df01013

 Virtualization: kvm
Operating System: Ubuntu 22.04.3 LTS

         Kernel: Linux 5.15.0-106-generic

   Architecture: x86-64

Hardware Vendor: QEMU

 Hardware Model: Standard PC _i440FX + PIIX, 1996_ 
 Change server hostname: