Understanding Server Hostnames

A hostname is a label assigned to your server to identify it on a network. A Fully Qualified Domain Name (FQDN) is the complete domain name for a specific computer, or host, on the internet.

A good FQDN is something like server1.yourdomain.com.

How to Set Your Hostname

You can set your hostname on most Linux systems using the `hostnamectl` command:

sudo hostnamectl set-hostname your-new-hostname.yourdomain.com