At some point you may want to run your own Federated Wiki site, or perhaps set one up for friends or a class. We've had good luck installing on Digital Ocean, which currently offers very cheap hosting and a much simpler setup than services such as Amazon Web Services.
First, sign up for Digital Ocean. html 
Choose a plan. For a personal site or a small group site, we've found the $5/mo option works perfectly fine.
Go to your dashboard, and press the console access button at the top.
Type the following text at the prompt:
curl -L https://goo.gl/HeJ5HP | bash
That sets up a farm on port 80 that you can 'start wiki' to start, and 'stop wiki' to stop, and it will automatically start when the machine is restarted. Just point any domains/subdomains/wild card domains that you want to use at the servers IP.
If you see a lot of ERR! in the console, check that you enetered the command exactly.
When you want to update your version of the software, just run the command again. The Federated Wiki software will update while preserving your existing pages.