How to switch back networking to /etc/network/interfaces on Ubuntu 20.04 Focal Fossa Linux

How to switch back networking to /etc/network/interfaces on Ubuntu 20.04 Focal Fossa Linux

This article will explain how to switch back networking from NetPlan/CloudInit on Ubuntu 20.04 Focal Fossa Linux to yet now already obsolete networking managed via /etc/network/interfaces.

In this tutorial you will learn:

  • How to revert to eth0..n network naming convention
  • How to install ifupdown
  • How to remove CloudInit
  • How to enable networking daemon
WARNING
Switching back from NetPlan/CloudInit to the now obsolete networking daemon is not supported nor recommended as you might end up with a broken system.

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Installed NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux

How to install the NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux

The objective is to install the NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux and switch from a opensource Nouveau driver to the proprietary Nvidia driver.

To install Nvidia driver on other Linux distributions, follow our Nvidia Linux Driver guide.

In this tutorial you will learn:

  • Perform an automatic Nvidia driver installation using standard Ubuntu Repository
  • Learn how to perform an Nvidia driver installation using PPA repository
  • How to install the official Nvidia.com driver
  • Uninstall/switch back from Nvidia to Nouveau opensource driver

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Starting OpenVPN Server on Ubuntu 20.04

Basic Ubuntu 20.04 OpenVPN Client/Server connection setup

Setting up a VPN is a great way for a server to share network resources with a client. Configuring one, however, can seem a little intimidating to some users. In this guide, we’ll show you how to setup a VPN using OpenVPN on Ubuntu 20.04 Focal Fossa, while managing to avoid advanced configuration and technical jargon along the way.

In this tutorial you will learn:

  • How to install OpenVPN
  • How to configure an OpenVPN Server
  • How to connect to a VPN server from client machine
  • How to verify a successful VPN connection

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Upgrade from Ubuntu 19.10 to Ubuntu 20.04

How To Upgrade Ubuntu To 20.04 LTS Focal Fossa

The latest Ubuntu release, 20.04, marks an opportunity for both LTS users and people on the previous 19.10 release to update Ubuntu and take advantage of the latest features.

Thanks to Debian’s upgrade process, it should be relatively simple to either upgrade Ubuntu 18.04 to 20.04 (both LTS) or to upgrade Ubuntu 19.10 to 20.04 LTS Focal Fossa.

In this tutorial you will learn:

  • How to run your Ubuntu Update
  • How to Upgrade Ubuntu The Ubuntu Way
  • How to Upgrade Ubuntu The Debian Way
  • How to Upgrade Ubuntu 18.04 to 20.04 (both LTS)
  • How to Upgrade Ubuntu 19.10 to 20.04 LTS

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Docker on Ubuntu 20.04 LTS Focal Fossa

How to Install Docker On Ubuntu 20.04 LTS Focal Fossa

Docker is a combination of platform as a service products that use virtualization to provide software in packages called containers which can communicate with each other through well-defined channels. This tutorial focuses on Installing the latest Docker release on Ubuntu 20.04 LTS Focal Fossa.

In this tutorial you will learn:

  • How to install Docker from the standard Ubuntu Repository
  • How to enable Docker to start after the system reboot
  • How to allow regular user to administrate Docker

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How to install Ubuntu 20.04 on VirtualBox

In this tutorial, we’ll show you how to install Ubuntu 20.04 Focal Fossa in a VirtualBox virtual machine. You’ll be able to follow along with this guide whether you are using Windows, Ubuntu, or some other Linux distribution. Configuration of VirtualBox and the installation of Ubuntu 20.04 itself stays very consistent across various platforms.

Installing Ubuntu in a virtual machine is a great way to test out applications without having to install software on your host system. It’s also an excellent way to test out Ubuntu itself, if you aren’t already running it. If you’re a Windows 10 user, you also have the option to install Ubuntu 20.04 alongside Windows 10 (dual boot), if you’d prefer that to a virtual machine.

In this tutorial you will learn:

  • How to configure VirtualBox to host Ubuntu 20.04
  • How to create a Ubuntu 20.04 virtual machine

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Ubuntu 20.04 Minecraft Server Setup

Ubuntu 20.04 Minecraft Server Setup

The beauty of having your own Minecraft server is that you’re totally in charge of your gaming experience. You get to choose what settings are used on the server, you can use (or abuse) your admin powers for an advantage, and bestow those powers on to your fellow gaming buddies. You may want to create a private server for just you and your friends, or make it public for everyone to access.

Ubuntu 20.04 Focal Fossa is a top choice for hosting a Minecraft server, as Linux is known for its stability when running servers and Ubuntu is known for its ease of use. Follow along below as we take you through the steps to get your Minecraft server up and running.

In case you’re also wondering how to play Minecraft on Ubuntu 20.04, we’ve got you covered for that too. Just check out our other guide about how to install Minecraft on Ubuntu 20.04 Focal Fossa Linux.

In this tutorial you will learn:

  • How to install and configure Minecraft Server
  • Create Minecraft SystemD startup script
  • Provision new Minecraft server instance on the same host

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Ubuntu 20.04 SSH Server

Ubuntu 20.04 SSH Server

In this tutorial you will learn how to deploy an SSH server on Ubuntu 20.04 Server/Desktop.

WHAT IS SSH SERVER?
OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks. In addition, OpenSSH provides a large suite of secure tunneling capabilities, several authentication methods, and sophisticated configuration options. Reference: https://www.openssh.com/

In this tutorial you will learn:

  • How to install SSH Server
  • How to change SSH server’s status
  • How to open firewall rules to allow SSH incoming traffic
  • How to connect to SSH Server remotely using the ssh command
  • How to change default SSH listening port

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