@Ethic give you a good hint but I would add.
Think like most sysadmin think"
In this thread @NanoByte said
This box is not about thinking outside the box, its about thinking about this person and >>how they use the box. If we start enumerating the box we find several interesting things. >>Maybe there is a service of note. Many of you have found this service but have found >>yourself not able to utilize it. Think about how the person who owns the box would >>utilize it? Maybe there are guides online that he followed to secure it the way its secured? >>I bet if you did some googles from the prospective of the user of the box trying to set it >>up you would figure out really fast."
This is a good hint !