hostnamectl
Contents
Hostname or hostnames ?
- static host name: the traditional hostname, which can be chosen by the user, and is stored in the /etc/hostname file.
- transient hostname: a dynamic host name maintained by the kernel. It is initialized to the static host name by default, whose value defaults to localhost. It can be changed by DHCP or mDNS at runtime.
- The pretty hostname is a free-form UTF8 host name for presentation to the user.
Read
$ hostnamectl
Static hostname: joepc
Icon name: computer-laptop
Chassis: laptop
Machine ID: e68168c9bd5f4a80b3620222ba462d88
Boot ID: 2aef9ea8493f48799dac7db67a2959dc
Operating System: Ubuntu 19.10
Kernel: Linux 5.3.0-19-generic
Architecture: x86-64
Write
- hostnamectl --static set-hostname "Stephen"
- hostnamectl --pretty set-hostname "Stephen's notebook"
- hostnamectl --transient set-hostname "notebook"