i need SFS help

ok so the server is running locally, how would i go about posting it some where so that every one can get to it to be online. so that my friends in the nether lands can play on the same server.

This may be a better question for the SFS forums.

In brief: you'll need to make the server accessible to the internet, e.g. opening the port on your router and redirecting it to the machine running SFS. Then presumably your Unity game will connect to that, so then you just need to make the game available to your friends (e.g. on a web page).