Change Hostname on Fedora
source link: https://www.vultr.com/docs/change-hostname-on-fedora-best-practices
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Using a Different System?
- Change Hostname on Ubuntu
- Change Hostname on Debian
- Change Hostname on CentOS
- Change Hostname on FreeBSD
- Change Hostname on OpenBSD
- Change Hostname on Windows Server
- Change Hostname on Fedora CoreOS
- Change Hostname on CoreOS
- Change Hostname on Arch Linux
- Change Hostname on VzLinux
- Change Hostname on Rocky Linux
- Change Hostname on AlmaLinux
Supported Versions
This guide applies to:
- Fedora 32
- Fedora 31
Introduction
When creating a new Vultr VPS, you can set the Server Hostname before deployment. If you skip this step or decide to rename your server later, you'll discover that changing the server hostname from the Customer Portal also performs a fresh reinstall of the entire server.
Follow this guide if you need to change the server hostname without reinstalling.
Examples
This guide uses olddog for the old hostname and newtricks for the new hostname.
1. Check the Current Hostname
Check the hostname with hostname
.
$ hostname
olddog
You can also use hostnamectl
.
$ hostnamectl
Static hostname: olddog
Icon name: computer-vm
Chassis: vm
Machine ID: 58faa01902374a109313e96814764892
Boot ID: 25d09e7586c045d2954af4259416433b
Virtualization: kvm
Operating System: Fedora 32 (Server Edition)
CPE OS Name: cpe:/o:fedoraproject:fedora:32
Kernel: Linux 5.6.7-300.fc32.x86_64
Architecture: x86-64
2. Change Hostname
Change the hostname to newtricks.
$ sudo hostnamectl set-hostname newtricks
3. Update /etc/hosts
Use your favorite text editor to change any instances of your old hostname to the new hostname in /etc/hosts
. If you have a DNS name pointed to this instance, it's a best practice to also set that name here.
$ sudo nano /etc/hosts
From:
127.0.0.1 olddog
::1 olddog
To:
127.0.0.1 newtricks newtricks.example.com
::1 newtricks newtricks.example.com
4. Confirm the Change
Reboot the server.
Test your change with hostnamectl
and hostname
.
$ hostnamectl
Static hostname: newtricks
Icon name: computer-vm
Chassis: vm
Machine ID: 58faa01902374a109313e96814764892
Boot ID: 25d09e7586c045d2954af4259416433b
Virtualization: kvm
Operating System: Fedora 32 (Server Edition)
CPE OS Name: cpe:/o:fedoraproject:fedora:32
Kernel: Linux 5.6.7-300.fc32.x86_64
Architecture: x86-64
$ hostname
newtricks
$ hostname -a
newtricks.example.com
Update DNS
Your server hostname is changed and ready to use. This procedure does not change your DNS name, and you'll need to perform those steps at your domain registrar.
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