Change Hostname on Ubuntu

17 Dec 2025

Set the hostname

sudo hostnamectl set-hostname frankfurt-1

Update /etc/hosts (IMPORTANT)

Edit the file:

sudo vim /etc/hosts

Ensure it contains:

127.0.0.1 localhost
127.0.1.1 frankfurt-1

::1 ip6-localhost ip6-loopback

Reload the shell

exec bash

Verify

hostname
hostnamectl

Notes

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