Install a PAX South 2015 Challenge server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → PAX South 2015 Challenge)
I’m really very satisfied with this server provider. Hosting my Minecraft server worked without any issues, and installing mods was quick and easy. If any errors came up, it was easy to find the cause and fix them. On top of that, the support was fast and very helpful whenever I needed assistance. I would definitely recommend this server provider anytime.