I have multiple domains and subdomains, and I have a serivce on a port, that I'd like to setup so that it's accessible only on one certain subdomain. So for example foo.bar:9999 works, but bar:9999, baz:9999, and foo.baz:9999 doesn't.
How do I achieve it? I'm not able to find anything. I'm using nginx if there is a way to do it via it.
