How to show/check for open ports on Ubuntu Linux

How to show/check for open ports on Ubuntu Linux

Checking for open ports on Ubuntu Linux is an essential part of security administration. Some Linux software works by listening for incoming connections. A simple example would be a web server, which handles user requests whenever someone navigates to a website. As a Linux administrator or user, it’s important to always know which ports of your system are open to the internet. Otherwise, you could be unaware of outside connections being made to your computer, which consumes bandwidth and resources, along with being a potential security hole.

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Ubuntu 22.04 on WSL (Windows Subsystem for Linux)

Ubuntu 22.04 on WSL (Windows Subsystem for Linux)

If you are a Windows user and do not want to take the full plunge into Linux, Windows Subsystem for Linux can be a fair compromise to at least give you some Linux capabilities on your Windows sytem. Ubuntu 22.04 is a great operating system to install on WSL, and definitely the most popular of the Linux distributions currently offered. Both Windows 10 and Windows 11 systems are capable of installing Ubuntu 22.04 through WSL.

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How to enable/disable wayland on Ubuntu 22.04 Desktop

How to enable/disable wayland on Ubuntu 22.04 Desktop

Wayland is a communication protocol that specifies the communication between a display server and its clients, and we can choose whether to enable/disable Wayland on Ubuntu. By default the Ubuntu 22.04 Jammy Jellyfish desktop already uses Wayland but it’s also possible to load to Xorg display server instead. In this tutorial, you will see how to disable and enable Wayland in Ubuntu 22.04 Jammy Jellyfish.

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How to install, uninstall and update Firefox on Ubuntu

How to install, uninstall and update Firefox on Ubuntu

Every Ubuntu user that uses a graphical interface will have to interact with Mozilla Firefox in some capacity, since it’s the default internet browser on Ubuntu. Even if you just want to uninstall it and use a different browser, you’ll at least be dealing with it for a short time. In this guide, we’ll show you how you can install, update, and uninstall Firefox on Ubuntu Linux.

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How to Install etcd on Ubuntu

How to Install etcd on Ubuntu

Etcd is a free and open-source distributed and secure key-value store used to store the most critical information of a given distributed system. Etcd is written in Go making it extremely fast in distributed systems without incurring a performance overhead from clustered machines. In this guide, you discover the basics of installing and setting up an etcd cluster on Ubuntu systems.

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Gnome Dekstop on Ubuntu 20.04 LTS Focal Fossa

How to install Gnome on Ubuntu 20.04 LTS Focal Fossa

GNOME is the default desktop environment for Ubuntu 20.04. If you don’t yet have a desktop environment installed (as is the case for Ubuntu Server), or have a different GUI and would like to switch to GNOME, it’s very easy to do. GNOME includes a variety of desktop applications and its aim is to make a Linux system easy to use for non-programmers. In this tutorial, you will learn how to install the GNOME desktop environment on Ubuntu 20.04 Focal Fossa Linux.

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Ubuntu 20.04: Connect to wifi from command line with Netplan

Ubuntu Server 20.04: Connect to WiFi from command line

In this tutorial, you will learn how to connect to WiFi from command line on Ubuntu using Netplan. While this method can be used on Ubuntu desktop systems with a GUI, it is especially useful if you’re running a headless Ubuntu 20.04 system like a Raspberry Pi or need to connect to Wifi on Ubuntu Server. Follow along with us below as we connect to a WiFi on command line via SSID and network key.

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Installed GUI on Ubuntu 20.04

Ubuntu 20.04 GUI installation

The purpose of this tutorial is to install a desktop environment GUI on Ubuntu 20.04 Focal Fossa, whether you already have a GUI installed and wish to use a different desktop environment, or if you are only using the command line and would like access to a GUI. You can also use these instructions to install a GUI on Ubuntu Server 20.04, which doesn’t have a desktop environment installed by default. Follow along with our instructions below to install a GUI on Ubuntu 20.04 Focal Fossa Server and Desktop.

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How to install Ubuntu on USB Stick

How to install Ubuntu on USB Stick

Installing Ubuntu Linux onto a USB stick will allow you to have a portable operating sysem that you can plug into any computer. This differs from a live environment USB, as installing Ubuntu directly to a USB stick will create a persistent operating system, the same way it does when you install to a typical hard disk. However, the process of installing Ubuntu to USB is not the same as a usual hard drive.

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