The dedicated server software communicates with the website so that players can use it when setting up their games. Players will also be able to connect up via a peer-to-peer mechanism since DOSBox has a built-in server as well if they do not want to use a dedicated server. Players are required to create an account (for free of course) and through the website configure their DOSBox and game settings (ie: local paths and CD information if needed). Once that is all setup they will then be able to setup game rooms which will use either a dedicated server or themselves as the server and allow others to join the room and get connected.
We have tried to make the process as thin and streamlined as possible so as to create a great gaming experience for the players. (one of the things that killed the services of the past was bandwidth issues and lag) We have done quite a bit of testing over the past several months with different platforms (Windows and Linux) and network scenarios, including wireless, desktops and laptops and any combination there of. So far it has all been very successful.
The CGA Client and Server are publicly available for both Windows and Linux.