Hosting OD Remotely

Hello, I am setting up an Xserve in a colo for a company that has no permanent office. It is mostly to house my personal work stuff and allow expansion for when i employ more people. The plan is to keep all the data stored on the server and do background synch for the mobile accounts to keep all info up to date, and allow sharepoints to automount.

The server is running DNS/AFP/Mail/Web/OD
So far all functions are working great except for user login

I have the server bound to my macbook pro and can see the user names but get the “shakes” whenever i try to login.

My basic question is, is it possible to login to the OD over the internet? if so how do i set this up?

Thanks
Chris