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    Ubuntu 18.04 Essentials: Learn to Install, Administer and Use Ubuntu 18.04 Systems
    Ubuntu 18.04 Essentials: Learn to Install, Administer and Use Ubuntu 18.04 Systems
    Ubuntu 18.04 Essentials: Learn to Install, Administer and Use Ubuntu 18.04 Systems
    Ebook628 pages4 hours

    Ubuntu 18.04 Essentials: Learn to Install, Administer and Use Ubuntu 18.04 Systems

    By Neil Smyth

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    About this ebook

    Arguably one of the most highly regarded and widely used enterprise level operating systems available today is the Ubuntu 18.04 distribution. Not only is it considered to be among the most stable and reliable operating systems, it is also backed by the considerable resources and technical skills of Canonical, Ltd.

    Ubuntu 18.04 Essentials i

    LanguageEnglish
    PublisherPayload Media, Inc.
    Release dateApr 30, 2020
    ISBN9781951442170
    Ubuntu 18.04 Essentials: Learn to Install, Administer and Use Ubuntu 18.04 Systems

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      Book preview

      Ubuntu 18.04 Essentials - Neil Smyth

      ubuntu_18.04_front_cover_large.png

      Ubuntu 18.04 Essentials

      Ubuntu 18.04 Essentials

      ISBN-13: 978-1-951442-17-0

      © 2020 Neil Smyth / Payload Media, Inc. All Rights Reserved.

      This book is provided for personal use only. Unauthorized use, reproduction and/or distribution strictly prohibited. All rights reserved.

      The content of this book is provided for informational purposes only. Neither the publisher nor the author offers any warranties or representation, express or implied, with regard to the accuracy of information contained in this book, nor do they accept any liability for any loss or damage arising from any errors or omissions.

      This book contains trademarked terms that are used solely for editorial purposes and to the benefit of the respective trademark owner. The terms used within this book are not intended as infringement of any trademarks.

      Rev: 1.0

      Table of Contents

      1. Introduction

      1.1 Superuser Conventions

      1.2 Opening a Terminal Window

      1.3 Editing Files

      1.4 Feedback

      1.5 Errata

      2. A Brief History of Linux

      2.1 What exactly is Linux?

      2.2 UNIX Origins

      2.3 Who Created Linux?

      2.4 The History of Ubuntu

      2.5 What does the word Ubuntu Mean?

      2.6 Summary

      3. Installing Ubuntu on a Clean Disk Drive

      3.1 Ubuntu Installation Options

      3.2 Server vs. Desktop Editions

      3.3 Obtaining the Ubuntu Installation Media

      3.4 Writing the ISO Installation Image to a USB Drive

      3.4.1 Linux

      3.4.2 macOS

      3.4.3 Windows

      3.5 Booting from the Ubuntu USB Image

      3.6 Installing Ubuntu

      3.7 Accessing the Ubuntu Desktop

      3.8 Installing Updates

      3.9 Displaying Boot Messages

      3.10 Summary

      4. Installing Ubuntu with the Network Installer

      4.1 Network Installer Advantages

      4.2 Obtaining the Network Installer Image

      4.3 Booting from the Installer Image

      4.4 Performing the Installation

      4.5 Disk Partitioning

      4.6 Software Collection Selection

      4.7 Installing Software Collections After System Setup

      4.8 Summary

      5. Dual Booting Ubuntu with Windows

      5.1 Beginning the Ubuntu Installation

      5.2 Booting Ubuntu for the First Time

      5.3 Changing the Default Boot Option

      5.4 Accessing the Windows Partition from the Command-line

      5.5 Accessing the Windows Partition from the Desktop

      5.6 Summary

      6. Allocating Windows Disk Partitions to Ubuntu

      6.1 Unmounting the Windows Partition

      6.2 Deleting the Windows Partitions from the Disk

      6.3 Formatting the Unallocated Disk Partition

      6.4 Mounting the New Partition

      6.5 Editing the Boot Menu

      6.6 Using GNOME Disks Utility

      6.7 Summary

      7. A Guided Tour of the GNOME 3 Desktop

      7.1 Installing the GNOME Desktop

      7.2 An Overview of the GNOME 3 Desktop

      7.3 Launching Activities

      7.4 Managing Windows

      7.5 Using Workspaces

      7.6 Calendar and Notifications

      7.7 Desktop Settings

      7.8 Customizing the Dash

      7.9 Installing Ubuntu Software

      7.10 Beyond Basic Customization

      7.11 Summary

      8. An Overview of the Ubuntu Cockpit Web Interface

      8.1 An Overview of Cockpit

      8.2 Installing and Enabling Cockpit

      8.3 Accessing Cockpit

      8.4 System

      8.5 Logs

      8.6 Storage

      8.7 Networking

      8.8 Accounts

      8.9 Services

      8.10 Applications

      8.11 Virtual Machines

      8.12 Software Updates

      8.13 Terminal

      8.14 Connecting to Multiple Servers

      8.15 Summary

      9. Using the Bash Shell on Ubuntu

      9.1 What is a Shell?

      9.2 Gaining Access to the Shell

      9.3 Entering Commands at the Prompt

      9.4 Getting Information about a Command

      9.5 Bash Command-line Editing

      9.6 Working with the Shell History

      9.7 Filename Shorthand

      9.8 Filename and Path Completion

      9.9 Input and Output Redirection

      9.10 Working with Pipes in the Bash Shell

      9.11 Configuring Aliases

      9.12 Environment Variables

      9.13 Writing Shell Scripts

      9.14 Summary

      10. Managing Ubuntu Users and Groups

      10.1 User Management from the Command-line

      10.2 User Management with Cockpit

      10.3 User Management using the Settings App

      10.4 Summary

      11. Ubuntu Software Package Management and Updates

      11.1 Repositories

      11.2 Managing Repositories with Software & Updates

      11.3 Managing Packages with APT

      11.4 Performing Updates

      11.5 Enabling Automatic Updates

      11.6 Enabling Livepatch

      11.7 Summary

      12. Configuring Ubuntu systemd Units

      12.1 Understanding Ubuntu systemd Targets

      12.2 Understanding Ubuntu systemd Services

      12.3 Ubuntu systemd Target Descriptions

      12.4 Identifying and Configuring the Default Target

      12.5 Understanding systemd Units and Unit Types

      12.6 Dynamically Changing the Current Target

      12.7 Enabling, Disabling and Masking systemd Units

      12.8 Working with systemd Units in Cockpit

      12.9 Summary

      13. Ubuntu Network Management

      13.1 An Introduction to NetworkManager

      13.2 Installing and Enabling NetworkManager

      13.3 Basic nmcli Commands

      13.4 Working with Connection Profiles

      13.5 Interactive Editing

      13.6 Configuring NetworkManager Permissions

      13.7 Summary

      14. Ubuntu Firewall Basics

      14.1 Understanding Ports and Services

      14.2 Securing Ports and Services

      14.3 Ubuntu Services and iptables Rules

      14.4 Well Known Ports and Services

      14.5 Summary

      15. Using gufw and ufw to Configure an Ubuntu Firewall

      15.1 An Overview of gufw and ufw

      15.2 Installing gufw on Ubuntu

      15.3 Running and Enabling gufw

      15.4 Creating a New Profile

      15.5 Adding Preconfigured Firewall Rules

      15.6 Adding Simple Firewall Rules

      15.7 Adding Advanced Rules

      15.8 Configuring the Firewall from the Command Line using ufw

      15.9 Summary

      16. Basic Ubuntu Firewall Configuration with firewalld

      16.1 An Introduction to firewalld

      16.1.1 Zones

      16.1.2 Interfaces

      16.1.3 Services

      16.1.4 Ports

      16.2 Checking firewalld Status

      16.3 Configuring Firewall Rules with firewall-cmd

      16.3.1 Identifying and Changing the Default Zone

      16.3.2 Displaying Zone Information

      16.3.3 Adding and Removing Zone Services

      16.3.4 Working with Port-based Rules

      16.3.5 Creating a New Zone

      16.3.6 Changing Zone/Interface Assignments

      16.3.7 Masquerading

      16.3.8 Adding ICMP Rules

      16.3.9 Implementing Port Forwarding

      16.4 Managing firewalld using firewall-config

      16.5 Summary

      17. Configuring SSH Key-based Authentication on Ubuntu

      17.1 An Overview of Secure Shell (SSH)

      17.2 SSH Key-based Authentication

      17.3 Setting Up Key-based Authentication

      17.4 Installing and Starting the SSH Service

      17.5 SSH Key-based Authentication from Linux and macOS Clients

      17.6 Managing Multiple Keys

      17.7 SSH Key-based Authentication from Windows 10 Clients

      17.8 SSH Key-based Authentication using PuTTY

      17.9 Generating a Private Key with PuTTYgen

      17.10 Installing the Public Key for a Google Cloud Instance

      17.11 Summary

      18. Ubuntu Remote Desktop Access with Vino

      18.1 Remote Desktop Access Types

      18.2 Secure and Insecure Remote Desktop Access

      18.3 Enabling Remote Desktop Access on Ubuntu

      18.4 Connecting to the Shared Desktop

      18.5 Connecting from Non-Linux Clients

      18.6 Establishing a Secure Remote Desktop Session

      18.7 Establishing a Secure Tunnel on Windows using PuTTY

      18.8 Summary

      19. Ubuntu Remote Desktop Access with VNC

      19.1 Installing the GNOME Desktop Environment

      19.2 Installing VNC on Ubuntu

      19.3 Configuring the VNC Server

      19.4 Starting the VNC Server

      19.5 Connecting to a VNC Server

      19.6 Summary

      20. Displaying Ubuntu Applications Remotely (X11 Forwarding)

      20.1 Requirements for Remotely Displaying Ubuntu Applications

      20.2 Remotely Displaying an Ubuntu Application

      20.3 Trusted X11 Forwarding

      20.4 Compressed X11 Forwarding

      20.5 Displaying Remote Ubuntu Apps on Windows

      20.6 Summary

      21. Using NFS to Share Ubuntu Files with Remote Systems

      21.1 Ensuring NFS Services are running on Ubuntu

      21.2 Configuring the Ubuntu Firewall to Allow NFS Traffic

      21.3 Specifying the Folders to be Shared

      21.4 Accessing Shared Ubuntu Folders

      21.5 Mounting an NFS Filesystem on System Startup

      21.6 Unmounting an NFS Mount Point

      21.7 Accessing NFS Filesystems in Cockpit

      21.8 Summary

      22. Sharing Files between Ubuntu and Windows Systems with Samba

      22.1 Accessing Windows Resources from the GNOME Desktop

      22.2 Samba and Samba Client

      22.3 Installing Samba on an Ubuntu System

      22.4 Configuring the Ubuntu Firewall to Enable Samba

      22.5 Configuring the smb.conf File

      22.5.1 Configuring the [global] Section

      22.5.2 Configuring a Shared Resource

      22.5.3 Removing Unnecessary Shares

      22.6 Creating a Samba User

      22.7 Testing the smb.conf File

      22.8 Starting the Samba and NetBIOS Name Services

      22.9 Accessing Samba Shares

      22.10 Accessing Windows Shares from Ubuntu

      22.11 Summary

      23. An Overview of Virtualization Techniques

      23.1 Guest Operating System Virtualization

      23.2 Hypervisor Virtualization

      23.2.1 Paravirtualization

      23.2.2 Full Virtualization

      23.2.3 Hardware Virtualization

      23.3 Virtual Machine Networking

      23.4 Summary

      24. Installing KVM Virtualization on Ubuntu

      24.1 An Overview of KVM

      24.2 KVM Hardware Requirements

      24.3 Preparing Ubuntu for KVM Virtualization

      24.4 Verifying the KVM Installation

      24.5 Summary

      25. Creating KVM Virtual Machines using Cockpit and virt-manager

      25.1 Installing the Cockpit Virtual Machines Module

      25.2 Creating a Virtual Machine in Cockpit

      25.3 Starting the Installation

      25.4 Creating a Virtual Machine using virt-manager

      25.5 Starting the Virtual Machine Manager

      25.6 Configuring the KVM Virtual System

      25.7 Working with Storage Volumes and Storage Pools

      25.8 Starting the KVM Virtual Machine

      25.9 Summary

      26. Creating KVM Virtual Machines with virt-install and virsh

      26.1 Running virt-install to build a KVM Guest System

      26.2 An Example Ubuntu virt-install Command

      26.3 Starting and Stopping a Virtual Machine from the Command-Line

      26.4 Creating a Virtual Machine from a Configuration File

      26.5 Summary

      27. Creating an Ubuntu KVM Networked Bridge Interface

      27.1 Identifying the Network Management System

      27.2 Getting the Netplan Network Settings

      27.3 Creating a Netplan Network Bridge

      27.4 Getting the Current Network Manager Settings

      27.5 Creating a Network Manager Bridge from the Command-Line

      27.6 Declaring the KVM Bridged Network

      27.7 Using a Bridge Network in a Virtual Machine

      27.8 Creating a Bridge Network using nm-connection-editor

      27.9 Summary

      28. Managing KVM using the virsh Command-Line Tool

      28.1 The virsh Shell and Command-Line

      28.2 Listing Guest System Status

      28.3 Starting a Guest System

      28.4 Shutting Down a Guest System

      28.5 Suspending and Resuming a Guest System

      28.6 Saving and Restoring Guest Systems

      28.7 Rebooting a Guest System

      28.8 Configuring the Memory Assigned to a Guest OS

      28.9 Summary

      29. An Introduction to Linux Containers

      29.1 Linux Containers and Kernel Sharing

      29.2 Container Uses and Advantages

      29.3 Ubuntu Container Tools

      29.4 The Docker Registry

      29.5 Container Networking

      29.6 Summary

      30. Working with Containers on Ubuntu

      30.1 Installing the Container Tools

      30.2 Pulling a Container Image

      30.3 Running the Image in a Container

      30.4 Managing a Container

      30.5 Saving a Container to an Image

      30.6 Removing an Image from Local Storage

      30.7 Removing Containers

      30.8 Building a Container with Buildah

      30.9 Summary

      31. Setting Up an Ubuntu Web Server

      31.1 Requirements for Configuring an Ubuntu Web Server

      31.2 Installing the Apache Web Server Packages

      31.3 Configuring the Firewall

      31.4 Port Forwarding

      31.5 Starting the Apache Web Server

      31.6 Testing the Web Server

      31.7 Configuring the Apache Web Server for Your Domain

      31.8 The Basics of a Secure Web Site

      31.9 Configuring Apache for HTTPS

      31.10 Obtaining an SSL Certificate

      31.11 Summary

      32. Configuring an Ubuntu Postfix Email Server

      32.1 The structure of the Email System

      32.1.1 Mail User Agent

      32.1.2 Mail Transfer Agent

      32.1.3 Mail Delivery Agent

      32.1.4 SMTP

      32.1.5 SMTP Relay

      32.2 Configuring an Ubuntu Email Server

      32.3 Postfix Pre-Installation Steps

      32.4 Firewall/Router Configuration

      32.5 Installing Postfix on Ubuntu

      32.6 Configuring Postfix

      32.7 Configuring DNS MX Records

      32.8 Starting Postfix on an Ubuntu System

      32.9 Testing Postfix

      32.10 Sending Mail via an SMTP Relay Server

      32.11 Summary

      33. Adding a New Disk Drive to an Ubuntu System

      33.1 Mounted File Systems or Logical Volumes

      33.2 Finding the New Hard Drive

      33.3 Creating Linux Partitions

      33.4 Creating a File System on a Disk Partition

      33.5 An Overview of Journaled File Systems

      33.6 Mounting a File System

      33.7 Configuring Ubuntu to Automatically Mount a File System

      33.8 Adding a Disk Using Cockpit

      33.9 Summary

      34. Adding a New Disk to an Ubuntu Volume Group and Logical Volume

      34.1 An Overview of Logical Volume Management (LVM)

      34.1.1 Volume Group (VG)

      34.1.2 Physical Volume (PV)

      34.1.3 Logical Volume (LV)

      34.1.4 Physical Extent (PE)

      34.1.5 Logical Extent (LE)

      34.2 Getting Information about Logical Volumes

      34.3 Adding Additional Space to a Volume Group from the Command-Line

      34.4 Summary

      35. Adding and Managing Ubuntu Swap Space

      35.1 What is Swap Space?

      35.2 Recommended Swap Space for Ubuntu

      35.3 Identifying Current Swap Space Usage

      35.4 Adding a Swap File to an Ubuntu System

      35.5 Adding Swap as a Partition

      35.6 Adding Space to an Ubuntu LVM Swap Volume

      35.7 Adding Swap Space to the Volume Group

      35.8 Summary

      36. Ubuntu System and Process Monitoring

      36.1 Managing Processes

      36.2 Real-time System Monitoring with htop

      36.3 Command-Line Disk and Swap Space Monitoring

      36.4 Summary

      Index

      1. Introduction

      Ubuntu is arguably one of the most highly regarded and widely used Linux distributions available today. Praised both for its ease of use and reliability, Ubuntu also has a loyal following of Linux users and an active community of developers.

      Ubuntu 18.04 Essentials is designed to provide detailed information on the installation, use and administration of the Ubuntu 18.04 distribution. For beginners, the book covers topics such as operating system installation, the basics of the GNOME desktop environment, configuring email and web servers and installing packages and system updates. Additional installation topics such as dual booting with Microsoft Windows are also covered, together with all important security topics such as configuring a firewall and user and group administration.

      For the experienced user, topics such as remote desktop access, the Cockpit web interface, logical volume management (LVM), disk partitioning, swap management, KVM virtualization, Secure Shell (SSH), Linux Containers and file sharing using both Samba and NFS are covered in detail to provide a thorough overview of this enterprise class operating system.

      1.1 Superuser Conventions

      Ubuntu, in common with Linux in general, has two types of user account, one being a standard user account with restricted access to many of the administrative files and features of the operating system, and the other a superuser (root) account with elevated privileges. Typically, a user can gain root access either by logging in as the root user, or using the su - command and entering the root password. In the following example, a user is gaining root access via the su - command:

      [neil@demo-server ~]$ su -

      Password:

      [root@demo-server ~]#

      Note that the command prompt for a regular user ends with a $ sign while the root user has a # character. When working with the command-line, this is a useful indication as to whether or not you are currently issuing commands as the root user.

      If the su - command fails, the root account on the system has most likely been disabled for security reasons. In this case, the sudo command can be used instead as outlined below.

      Alternatively, a single command requiring root privileges may be executed by a non-root user via the sudo command. Consider the following attempt to update the operating system with the latest patches and packages:

      $ apt update

      Reading package lists... Done

      E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)

      Optionally, user accounts may be configured so that they have access to root level privileges. Instead of using the su - command to first gain root access, user accounts with administration privileges are able to run otherwise restricted commands using sudo.

      $ sudo apt update

      [sudo] password for demo:

      Hit:1 http://us.archive.ubuntu.com/ubuntu bionic InRelease

      .

      .

      To perform multiple commands without repeatedly using the sudo command, a command prompt with persistent super-user privileges may be accessed as follows:

      [neil@demo-server]$ sudo su -

      [neil@demo-server]#

      The reason for raising this issue so early in the book is that many of the command-line examples outlined in this book will require root privileges. Rather than repetitively preface every command-line example with directions to run the command as root, the command prompt at the start of the line will be used to indicate whether or not the command needs to be performed as root. If the command can be run as a regular user, the command will be prefixed with a $ command prompt as follows:

      $ date

      If, on the other hand, the command requires root privileges, the command will be preceded by a # command prompt:

      # apt install openssh-server

      1.2 Opening a Terminal Window

      If you are running Ubuntu with the GNOME desktop and need to access a command-prompt you will need to open a terminal window. This can be achieved by right-clicking on the desktop background and selecting the Open Terminal menu option as shown in Figure 1-1:

      Figure 1-1

      A terminal window may also be opened within the GNOME desktop using the Ctrl-Alt-T keyboard accelerator.

      1.3 Editing Files

      Configuring a Linux system typically involves editing files. For those new to Linux it can be unclear which editor to use. If you are running a terminal session and do not already have a preferred editor we recommend using the nano editor. To launch nano in a terminal window simply enter the following command:

      # nano

      Where is replaced by the path to the file you wish to edit. For example:

      # nano /etc/passwd

      Once loaded, nano will appear as illustrated in Figure 1-2:

      Figure 1-2

      To create a new file simply run nano as follows:

      # nano

      When you have finished editing the file, type Ctrl-S to save the file followed by Ctrl-X to exit. To open an existing file, use the Ctrl-R keyboard shortcut.

      If you prefer to use a graphical editor within the GNOME desktop environment gedit is a useful starting point for basic editing tasks. To launch gedit from the desktop press Alt-F2 to display the Enter a Command window as shown in Figure 1-3:

      Figure 1-3

      Enter gedit into the text field and press the Enter key. After a short delay, gedit will load ready to open, create and edit files:

      Figure 1-4

      Alternatively, launch gedit from a terminal window either with or without the path to the file to open:

      # gedit

      # gedit /etc/passwd

      1.4 Feedback

      We want you to be satisfied with your purchase of this book. If you find any errors in the book, or have any comments, questions or concerns please contact us at [email protected].

      1.5 Errata

      While we make every effort to ensure the accuracy of the content of this book, it is inevitable that a book covering a subject area of this size and complexity may include some errors and oversights. Any known issues with the book will be outlined, together with solutions, at the following URL:

      https://www.ebookfrenzy.com/errata/ubuntu1804.html

      In the event that you find an error not listed in the errata, please let us know by emailing our support team at [email protected].

      2. A Brief History of Linux

      Ubuntu Linux is one of a number of variants (also referred to as distributions) of the Linux operating system and is the product of a U.K. company named Canonical Ltd. The company was founded in 1994 by Mark Shuttleworth. The origins of Linux, however, go back even further. This chapter will outline the history of both the Linux operating system and Ubuntu.

      2.1 What exactly is Linux?

      Linux is an operating system in much the same way that Windows is an operating system (and there any similarities between Linux and Windows end). The term operating system is used to describe the software that acts as a layer between the hardware in a computer and the applications that we all run on a daily basis. When programmers write applications, they interface with the operating system to perform such tasks as writing files to the hard disk drive and displaying information on the screen. Without an operating system, every programmer would have to write code to directly access the hardware of the system. In addition, the programmer would have to be able to support every single piece of hardware ever created to be sure the application would work on every possible hardware configuration. Because the operating system handles all of this hardware complexity, application development becomes a much easier task. Linux is just one of a number of different operating systems available today.

      2.2 UNIX Origins

      To understand the history of Linux, we first have to go back to AT&T Bell Laboratories in the late 1960s. During this time AT&T had discontinued involvement in the development of a new operating system named Multics. Two AT&T engineers, Ken Thompson and Dennis Ritchie, decided to take what they had learned from the Multics project and create a new operating system named UNIX which quickly gained popularity and wide adoption both with corporations and academic institutions.

      A variety of proprietary UNIX implementations eventually came to market including those created by IBM (AIX), Hewlett-Packard (HP-UX) and Sun Microsystems (SunOS and Solaris). In addition, a UNIX-like operating system named MINIX was created by Andrew S. Tanenbaum designed for educational use with source code access provided to universities.

      2.3 Who Created Linux?

      The origins of Linux can be traced back to the work and philosophies of two people. At the heart of the Linux operating system is something called the kernel. This is the core set of features necessary for the operating system to function. The kernel manages the system’s resources and handles communication between the hardware and the applications. The Linux kernel was developed by Linus Torvalds who, taking a dislike to MS-DOS, and impatient for the availability of MINIX for the new Intel 80386 microprocessor, decided to write his own UNIX-like kernel. When he had finished the first version of the kernel, he released it under an open source license that enabled anyone to download the source code and freely use and modify it without having to pay Linus any money.

      Around the same time, Richard Stallman at the Free Software Foundation, a strong advocate of free and open source software, was working on an open source operating system of his own. Rather than focusing initially on the kernel, however, Stallman decided to begin by developing open source versions of all the UNIX tools, utilities and compilers necessary to use and maintain an operating system. By the time he had finished developing this infrastructure it seemed like the obvious solution was to combine his work with the kernel Linus had written to create a full operating system. This combination became known as GNU/Linux. Purists insist that Linux always be referred to as GNU/Linux (in fact, at one time, Richard Stallman refused to give press interviews to any publication which failed to refer to Linux as GNU/Linux). This is not unreasonable given that the GNU tools developed by the Free Software Foundation make up a significant and vital part of GNU/Linux. Unfortunately, most people and publications simply refer to Linux as Linux and this will probably always continue to be the case.

      2.4 The History of Ubuntu

      As mentioned previously, Ubuntu is one of a number of Linux distributions. The source code that makes up the Ubuntu distribution originates from a highly regarded Linux distribution known as Debian created Ian Murdoch.

      A South African internet mogul named Mark Shuttleworth (who made his fortune selling his company to VeriSign for around $500 million) decided it was time for a more user friendly Linux. He took the Debian distribution and worked to make it a more human friendly distribution which he called Ubuntu. He subsequently formed a company called Canonical Ltd to promote and provide support for Ubuntu.

      If you are new to Linux, or already use Linux and want to try a different Linux distribution it is unlikely you will find a better option than Ubuntu.

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