1: Start the Server.
$ cd .../ice/server
$ dub run
2: Start first client.
$ cd .../ice/examples/client
$ dub run
3: Start second client. (Reopen a terminal)
$ cd .../ice/examples/client
$ dub run
4: In the two client, follow the prompts to enter "menu" or other content.
5: If the tests are not normal on local host, you can deploy server on the internet public network server and modify the client configuration file at the same time.