it seems we have a pretty special configuration, although i was not thinking that this could be that tricky.
We have a fixed ip address with a normal router and behind a server. This server hosts several virtual machines with different web services (owncloud, openproject etc.)
To grant remote access with make a port forwarding to the local ip address and port 80 + 443.
For more comfort we also have a domain which has several subdomains which forward to each of these ports:
so we would like to have for each subdomain a lets encrypt certificate to get rid of the browser messages and, e.g. to use npm install from different ssl git url.
Unfortunately this seems not to work.
We tried url forwarding, an A record at the dns server but all the scripts from lets encrypt fail.
Is usage of lets encrypt in our scenario possible and if yes how could we achieve it.
Thanks in advance