We have a couple of hosts that are registered to Katello with their shortname as opposed to the FQDN and are looking at updating these to the FQDN. These were registered a while back and there is no issue with any current registrations, but I have been tasked with lining everything up neatly.
What I am not sure about is the best way to do this. I could manually update the web ui to include the domain, but there is the concern that this may then affect the certs. I could also de-register the host, then register it again as a ‘new’ host, but as these are production servers I would like to make as little change as possible - and I am not 100% sure this would resolve the issue.
Is there any standard advice on this situation, or recommendations to read?