At that point, the server isn't actively hosting yet, it's only running.
For a basic test, you can activate hosting by calling
start_server in the server console directly. Call
help start_server to see the parameters. After that you should be able to join on it with a client game.
Later on, you'll probably want to run one of the premade gamemode scripts, Invasion, Classic, Deathmatch, etc, which will activate hosting automatically with the settings you've defined in the corresponding settings file. See
viewtopic.php?f=4&t=2044 for that.