Ok, I'm hosting a beta server but I want it private only to opticraft people. So, what I did is I used hamachi with a password.
Step 1 = Install Hamachi with this link:
http://hamachi.en.softonic.com/downloadStep 2 = Configure it to your liking.
Step 3 = Under the Network tab, click on "Join an Existing Network".
Step 4 = Type in for Network ID "Spartan-server". For password, type in "spartanrain"
Step 5 = Open up Minecraft. Then, click Multiplayer. Type in "5.63.52.179".
Step 6 = You're in! Mine some crap build a house!
Also looking for Operators for the server. Builder + only for the server, as I put it in the Builder+ board.
Thanks, ~Spartan.