A few days before the launch of Battlefield 2, Electronic Arts has released the retail dedicated server for Linux and Windows, allowing server admins to hosts multiplayer matches (press 'read more' for instructions). The Battlefield 2 demo is located here.

Battlefield 2 Dedicated Server for Windows v1.0 (127.64MB)

Battlefield 2 Dedicated Server for Linux v1.0 (132.89MB)