ok I still don’t know the answer to ‘how to change server port to 443’ But here is what I’ve found today • config file is in default: “/root/.fleet/config” • the fleetctl ‘context’ needs to be set the same as the fleet server or you can’t log in. • config file does not include port number And in case you think I haven’t been looking hard enough, here’s a nearly 2000 word post about the setup https://servicemax.com.au/tips/fleetdm-and-osquery-on-ubuntu-with-lego-and-letsencrypt/