During the installation of OpenBSD 6.1, right after setting up network interfaces, the installer prompts me:
DNS domain name? (e.g. 'bar.com') [my.domain]
I am not sure what this setting is for, I left it at default
my.domain and besides showing up on my prompt, I did not notice anything not working as intended.
Is this option just for proper labeling of the system environment, if not, what is it for? Should it just be set to the future domain address? What if the system holds multiple domains?