Kolab Groupware is a free and open source web-based groupware application. Its features consist of email communications, events, appointments, tasks, file cloud, contacts, and more. In this tutorial, you will learn how to install the latest version of Kolab Groupware on CentOS 7. - A Vultr CentOS 7 server instance. - A [sudo user](https://docs.vultr.com/how-to-use-sudo-on-a-vultr-cloud-server). Before installing any packages on the CentOS server instance, it is recommended to update the system......