Ubuntu 20.04 multi-node Virtual Machine

What is Ubuntu?

Linux is a kernel, the core part of an operating system. It is used in different distributions like Debian, CentOS, Fedora, etc. Ubuntu is an open-source operating system based on Debian. It can be installed in two ways - Ubuntu Desktop and Ubuntu Server. The desktop version provides a graphical user interface (GUI) and it that can replace other operating systems like Windows, and macOS. It can also run alongside these operating systems. This version is preferred for your personal machines. The server version does not provide a GUI out-of-the-box, just a command line where you can enter text commands. 

Learning path for Ubuntu

The best way to learn Ubuntu is to follow this learning path for Linux. KodeKloud offers courses for beginners such as the Learning Linux Basics course and Shell Script for Beginners course. 

Professionals can opt for advanced courses to prepare for Linux certifications. Linux Foundation Certified System Administrator (LFCS) and Red Hat Certified System Administrator(RHCSA) courses help in preparing for the certification exams.

Ubuntu multi-node playground

The playground gives you access to three different nodes. All three nodes can be accessed using the same terminal. Try out the basic Linux commands and experiment as much as you’d like. You can also refer to the Ubuntu documentation link provided in the playground. 

What can you do using the multi-node cluster?

• Copy files between the servers.
• Set up networks, test firewall rules, add network routes, experiment with DNS settings, and so on.
• Set up clusters that require multiple servers.
• Learn how to do remote backups, from one node to another node.
• Learn how to set up communication between two or more applications running on different servers.