I would like to get a letsencrypt.org SSL certificate for a service which runs on a non-default root-reserved port, i.e. port other than 443 and < 1024, e.g. 446. I'm uncertain whether letsencrypt.org supports this setup because I only found a feature request and a github.com issue which run into a discussion loop and are closed for no apparent reason. Maybe someone knows the answer right-away or cares to extract a clear statement which is hard to do for me because there're tons of references and developers and non-developers are talking confused.
I tried to specify
domain:port as domain to
letsencrypt console client which fails because it's not FQDN (
sudo letsencrypt certonly -a manual -d [domain]:446--test-cert fails due to
Requested domain [domain]:446 is not a FQDN) and adding
--http-01-port 446 doesn't help.