answer:Do you mean multiplayer server? Unless you’re stuck on the Mincraft.net official server software, I’d look into Bukkit. It’s free, has better mod support, and I’ve heard is better in terms of lightweightness as well. That being said, me and a friend run a Hamachi server sometimes with the official server software and I haven’t run into any problems at all with it. Your link doesn’t work, too. You best let Flutherites in if you get it working. :D