Check your current hostname using hostname
or hostnamectl
:
$ hostname
ubuntu
using hostnamectl
:
$ hostnamectl
Static hostname: ubuntu
Icon name: computer
Machine ID: 4e7602fbc48335fd9170deb9e360206c
Boot ID: 97f5788224fasde59791a12a8fa7ec69
Operating System: Ubuntu 20.10
Kernel: Linux 5.8.0-1013-generic
Architecture: x86-64
To change the hostname to mylinux
or any other desired hostname use the following hostnamectl
command:
$ sudo hostnamectl set-hostname mylinux
next, edit the hosts
file in /etc
to reflect the changes:
sudo vi /ect/hosts
append here the new hostname after localhost
:
127.0.0.1 localhost
127.0.1.1 mylinux
to check the new hostname use again hostname
or hostnamectl
:
$ hostnamectl
Static hostname: mylinux
Icon name: computer
Machine ID: 4e7602fbc48335fd9170deb9e360206c
Boot ID: 97f5788224fasde59791a12a8fa7ec69Chan
Operating System: Ubuntu 20.10
Kernel: Linux 5.8.0-1013-generic
Architecture: x86-64