Plesk is a powerful software for the administration of your 1&1 server. This software is designed to facilitate hosting service management. Plesk provides the ability to manage email accounts, data bases, manage ftp accounts and other tasks related with your hosting.
This application runs on Linux CentOS 7
Minimum requirements: Cloud Server M
You can use any number of free apps as part of your contract. All you need for each app is a separate VM.