how to set a start page

probably a dumb question.
but on visual studio on the solution explorer I right clicked on my home.aspx and chose set as start page
when I run from my computer everything is great.

however when I post to the server and I log on to the web site is showing me a directory of all my web pages.
how do I get my home .aspx to be the page that shows up when you type in the url?

 

Click IIS Tools under the Tools & Utilities heading. Then select the default documents tab. Update it so that your homepage is first on that list.

 

thank you