Hostname setting
Set your hostname on the engine. Once it has been set, you must reboot the system for the change to take effect. After the system reboot, make sure that the hostname has changed by running the hostname command.
Note: Consistently use the hostname of your engine (and that of other engines in a federation). For
example, for host “engine1.example.com”, consistently use either the Fully Qualified Domain Name
(FQDN), which is the preferred usage, "engine1.example.com" or "engine1" but not both.