Closing terminal, server stays open?!

I recently installed Jekyll and have had many permission problems when opening servers (stupid apple) i finally got them fixed and created my server, but i closed terminal before i closed the server. Now i cant actually create a new server because its saying the old one is open but of course i cant figure out how to close the server without the terminal hosting the server

Here’s some info on how to kill all jekyll instances. Save these are a profile in iTerm and run whenever needed.