Secure Shell or SSH is a well-known open-source networking protocol. The protocol is used to login to other machines remotely. Hence, it would be easy to execute a bunch of commands and launch any application on the remote device smoothly with no need to be near the remote machine. 

Docker is an open-source containerization application that is designed to create, deploy, and run application processes in a container, like a virtual machine but using the same kernel as the host operating system.

Postal is a free and open-source mail server used to send and receive emails. It comes loaded with tons of excellent features and functionalities, making it extremely popular among large organizations as well as in enterprise settings.

Redmine is an open-source free to use web-based tool for project management and issue tracking. Built on top of the Ruby on Rails framework, it offers a cross-platform and cross-database solution that comes with support for multiple projects, wikis, forums, calendars, email notification, and much more.

In case you are not aware, phpMyAdmin is one of the most popular free and open-source tools for the administration of MySQL and MariaDB. It supports a wide range of database operations like managing your indexes, tables, columns, relations, and so on. You also get the option to execute any SQL statement as well directly.

NFS or Network File System is a distributed file protocol that allows you to share a file or even an entire directory with others...

You are allowed to use any one of the FTP servers as you like. However, in this tutorial, we will be installing and using vsftpd, short for Very Secure FTP Daemon. It is a fast, stable, and secure FTP server that will help you transfer files to and from a remote system in a jiffy.

Choosing the perfect Linux distribution to set up your server can be confusing since Linux provides a limitless number of options. The main reason behind these many distributions is because Linux is an opensource platform. Anybody with the required skills can contribute to the development or build and release their distribution. Currently, there are more than 600 Linux Desktop and Server distributions in the market.