Hi,
I’m trying to set my FQDN so that when I do hostname -f, it gives me my FQDN (like mx.example.com) instead of my hostname which I used to create my Droplet.
I would appreciate any help.
Thanks.
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
Accepted Answer
Hello, @amirehmarwan
I believe that there are 3 things that you need to do:
1 Use the following command:
sudo hostnamectl set-hostname hostname
2 Update your hostname in your hosts file:
vim /etc/hosts
3 Find the references to the old FQDN and update them to the new one.
Update the cloud.cfg file. Edit the following file:
vim /etc/cloud/cloud.cfg
Find the reference for preserve_hostname and change it from false to true.
That is pretty much it, you can try to reboot your server and then test the change by running only the hostnamectl command.
Hope that this helps! Regards, Alex
Become a contributor for community
Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.
DigitalOcean Documentation
Full documentation for every DigitalOcean product.
Resources for startups and AI-native businesses
The Wave has everything you need to know about building a business, from raising funding to marketing your product.
The developer cloud
Scale up as you grow — whether you're running one virtual machine or ten thousand.
Get started for free
Sign up and get $200 in credit for your first 60 days with DigitalOcean.*
*This promotional offer applies to new accounts only.