# Basics of Linux ### Obtain and access

# Obtaining a Linux machine
                    <div class="slide-content">
                        <div class="text-column">
                            <ol>
                                <li>Dedicated hardware</li>
                                <ul>
                                    <li>Desktops / Servers</li>
                                    <li>Handhelds</li>
                                    <li>Laptops</li>
                                    <li>Separate hard drive</li>
                                </ul>
                                <li>Virtualisation environments</li>
                                <ul>
                                    <li>KVM based</li>
                                    <li>Microsoft Hyper-V</li>
                                    <li>Oracle VirtualBox</li>
                                    <li>VMware Fusion / Workstation</li>
                                </ul>
                            </ol>
                        </div>
                        <div class="text-column">
                            <ol start="3">
                                <li>Commercial cloud environments</li>
                                <ul>
                                    <li>AWS, Azure, Google, Hetzner, Oracle, etc.</li>
                                </ul>
                                <li>CSC cloud environments</li>
                                <ul>
                                    <li>Pouta, SD Desktop</li>
                                    <li>May also be found in HPCs, LUMI, Noppe, Rahti, etc.</li>
                                </ul>
                            </ol>
                        </div>
                    </div>
                    ---
                    # Obtaining a Linux distribution
                    <div class="slide-content">
                        <div class="text-column">
                            <ol>
                                <li>Dedicated hardware</li>
                                <ul>
                                    <li>Desktops / Servers</li>
                                    <li>Handhelds</li>
                                    <li>Laptops</li>
                                    <li>Separate hard drive</li>
                                </ul>
                                <li>Virtualisation environments</li>
                                <ul>
                                    <li>KVM based</li>
                                    <li>Microsoft Hyper-V</li>
                                    <li>Oracle VirtualBox</li>
                                    <li>VMware Fusion / Workstation</li>
                                </ul>
                            </ol>
                        </div>
                        <div class="image-column">
                            <figure>
                                <img src="/img/web-page-distrowatch-screenshot.png" alt="distrowatch.com web site open in a browser.">
                                <figcaption>distrowatch.com<sup>1</sup></figcaption>
                            </figure>
                        </div>
                    </div>
                    ---
                    # Obtaining a Linux distribution
                    <div class="slide-content">
                        <div class="image-column">
                            <figure>
                                <img src="/img/web-page-pouta-images-screenshot.png" alt="Pouta service view open in a browser.">
                                <figcaption>cPouta<sup>2</sup></figcaption>
                            </figure>
                        </div>
                        <div class="text-column">
                            <ol start="3">
                                <li>Commercial cloud environments</li>
                                <ul>
                                    <li>AWS, Azure, Google, Hetzner, Oracle, etc.</li>
                                </ul>
                                <li>CSC cloud environments</li>
                                <ul>
                                    <li><b>Pouta</b>, SD Desktop</li>
                                    <li>Also in HPCs, LUMI, Noppe, Rahti, etc.</li>
                                </ul>
                            </ol>
                        </div>
                    </div>
                    ---
                    # Accessing a Linux
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                        <div class="text-column">
                            <h3>GUI</h3>
                            <ul>
                                <li>Local via graphical user interface</li>
                                <li>Remote connection (e.g. VNC)</li>
                            </ul>
                            <img src="/img/ubuntu-desktop-login-screenshot.png" alt="Ubuntu desktop login view.">
                        </div>
                        <div class="text-column">
                            <h3>Command-line</h3>
                            <ul>
                                <li>Local via (virtual) console</li>
                                <li>Remote via SSH</li>
                            </ul>
                            <center>
                            <img src="/img/sld-linux-1-obtain-and-access-01.svg" width="450px" alt="A terminal view with open ssh connection.">
                            </center>
                        </div>
                    </div>
                    ---
                    # Graphical User Interface
                    <div class="slide-content">
                        <div class="text-column">
                            <ul>
                                <li>Desktops and laptops</li>
                                <ul><li>VNC for remote servers</li></ul>
                                <li>Stable and user-friendly</li>
                                <ul><li>Customisable</li></ul>
                                <li>Enlightenment, GNOME, KDE Plasma, MATE, Xfce...</li>
                            </ul>
                        </div>
                        <div class="slide-content image-column">
                                <img src="/img/ubuntu-desktop-ui-example-screenshot.png" alt="Ubuntu desktop with open applications.">
                        </div>
                    </div>
                    ---
                    # Command-line interface
                    <div class="slide-content">
                        <div class="text-column">
                            <ul>
                                <li>Suitable for (almost) any task</li>
                                <li>De facto for remote connections</li>
                                <li>Versatile and efficient</li>
                                <li>But - takes a bit of practice</li>
                            </ul>
                        </div>
                        <div class="slide-content image-column">
                                <img src="/img/macos-terminal-ssh-session-screenshot.png" alt="A terminal view with open ssh connection.">
                        </div>
                    </div>
                    ---
                    # References
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                    <div class="text-column">

1. [DistroWatch.com](https://distrowatch.com) - distrowatch.com
                    2. [Pouta Images](https://pouta.csc.fi/dashboard/project/images) - cPouta

</div>
                    </div>

Thank you

Joona Tolonen

servicedesk@csc.fi