Guess this is an embarrassing beginner question,anyways...
In the OrientDB documentation under "server security" we find:
While OrientDB Server can function as a regular Web Server, it is not recommended that you expose it directly to either the Internet or public networks. Instead, always hide OrientDB server in private networks.
Does this mean that the port 2480 which OrientDB uses for listening to HTTP connections should be open only locally but not being exposed to the outside world?