My old Mac Pro is not being used any longer so I want to turn it into a server. I believe I will run either Ubuntu or Debian on it. What I am wondering is how to hook it up so that it will use my Airport Extreme (2011 version) and will be able to network with my iMac should I decide to do that. Now, I need to learn more about servers as I am now using managed VPS for my auction and image sales websites and want to get equipped to manage my own VPS or Dedicated server. The Mac Pro will cost me nothing as I will be using the standard server OS such as Debian or Ubuntu and that should teach me what I need to know. Always open for suggestions.