Home / ubuntu / Questions / 1363819
In Process
Thomas Aichinger
Asked: 2021-09-15 17:27:22 +0800 CST

can not change hostname

  • 772

I want to change the hostname of a Ubuntu 18.04 server.

I did:

hostnamectl --set-hostname newname --static
changed /etc/hostname file to newname
changed /etc/hosts file to newname
rm -f /etc/machine-id
dbus-uuidgen --ensure=/etc/machine-id
dbus-uuidgen --ensure
dpkg-reconfigure openssh-server

Finally I did a reboot. But after reboot there is still the old hostname. The file /etc/hostname has been changed to the old hostname.

How to permanently change the hostname?

18.04

1 Answers

  1. Additionally I had to change the file /etc/cloud/cloud.cfg

    There is a setting preserve_hostname: false

    I had to change that from false to true. After rebbot hostname had changed.

    • 1