Could Someone plz help me?

[medabots1996]

Well, I have already create a Private Server for me and my friends to play
But I don't Understand something:
When Entering the game,I personally could see the server set (2 servers) but my friends cannot
In fact, there is no Server on my friend's client (means he can't see a server to log in)
Could someone plz help me?
Thanks a lot if you would

[MentaL]

[Phoenix]

If you're hosting it then you have to have a VPS System so that your friends can connect.