Your Minecraft server comes with the following add-ons:
- McMyAdmin, for managing your Minecraft server
- FTP, to download and upload new worlds
- Webmin, to manage the VPS server
McMyAdmin is the most advanced tool to manage your Minecraft server. Below you see a screenshot:
Anything you can think of by managing your server, it's available through McMyAdmin.
FTP access
To upload and download new worlds, you need FTP. So your Minecraft server is provided with FTP.
For FTP tool you can use something like FileZilla.
Filezilla screenshot:
Webmin
For more advanced users there is also Webmin Available. With webmin you can manage your Linux server, without having in depth knowledge about Linux.
A screenshot you can find below:
