Making new server and backing up old one

[Randymarsh9]

I had a server up a while ago, but I had to take it down due to problems with random loot. I was thinking about making a new server just for me and some friends to play on, so how could I make the new server and keep the same configurations so I don't have to go through all that stuff again, but save my custom content as well for if I can ever fix the random loot problem? Basically, I want to save all the content from my old server in case I can fix the problems with it, and I want to have a new server in its place.