gnome-system-tools binary package in Ubuntu Lunar s390x

 These System Tools (known as GNOME System Tools) are a set of tools aimed to
 make easy the job that means the computer administration on an UNIX or Linux
 system. They're thought to help from the new Linux or UNIX user to the system
 administrators.
 .
 Its main advantages are:
  * An user-friendly interface to carry out the main administration tasks.
  * The use of a common user interface in every system.
  * A common structure that makes easy the development of new system tools.
 Nowadays there are tools for managing:
  - Users and groups
  - Date and time
  - Shares (NFS and Samba)

Source package