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Chapter 1: Internet, Networks and TCP/IP

Chapter 2: The LINUX operating system - Setting up a Linux Web Server

Chapter 3: Your first webpage, Learning HTML and CSS

Chapter 4: Building Dynamic Websites with PHP in progress

Chapter 5: Web forms under construction

Chapter 6: Developing your first Bioinformatics web application under construction

Chapter 7: The PHP programming language: strings, arrays, functions, cycles, conditional statements, regular expressions under construction

Chapter 8: Sample Bioinformatics Web Applications under construction

chapter_2_-_the_linux_operating_system:installing_ubuntu_linux

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2-1: Installing Ubuntu Linux

For the purpose of this course, Ubuntu will typically be installed by the students on one or several second-hand servers or PCs.

Hardware specifications (and possible costs involved) are modest, any machine with a dual-core processor, a couple of GIGs of RAM, an hard disk (70GB or more), a CD/DVD slot, an ethernet port will be fine for setting up a great web server able to hold all the students accounts for the duration of the course and beyond.

The installation of Ubuntu has been documented in great details, and is generally easy and user-friendly on most systems. Here's a good pointer to get started: Installing Ubuntu.

In order to keep this initial installation process as smooth as possible, we generally proceed to the installation of a Desktop Ubuntu release, which is more user-friendly, as first impact, then server releases. For one, desktop releases come with a graphical environment similar to the one that users of other operating systems are used to. Few additions (software installations) will turn a Desktop Ubuntu in a perfect web server. We will discuss the required software (LAMP server, SSH server) and related installation procedures and configuration in detail further on during this tutorial.

Once students become familiar with Linux Ubuntu, they might want to go ahead and install Ubuntu alongside or maybe instead of the operating system they already have on their laptops. Indeed, the Ubuntu installation CD offers, as an installation option, to format the disk of the computer to create a dedicated partition for Linux installation. We will not go in the details of this here, but just remember that before any major computer operation such as the installation of a new operating system it is a wise idea to make a full backup of the existing data. Data loss is always a possibility, should something go awry during installation.

Under these circumstances, a Bootloader is also installed, that will allow the selection of the operating system to use, at boot time (for example Windows or Linux). At the time of this writing, the default bootloader installed with Ubuntu is Grub 2.

The possibility to work and develop locally on one's own local hardware, either laptop, desktop or server should be pursued actively as it allows a full control of the system (you often cannot get a full privileges/root access on somebody else's machine) and ultimately leads to a development of system administration skylls that are difficult to develop as a mere guest user. Having full control is more difficult, because, especially at the beginning some tasks, such as for example apache configuration, might seem complicated and will take a fair amount of time. On the long run however, this means having full control of your environment and a more aware and skilled user. We encourage you to select the hard path of taking full control in your hands, it will pay.

Discussion

cellbiol, 2013/01/21 16:46

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chapter_2_-_the_linux_operating_system/installing_ubuntu_linux.1358529169.txt.gz · Last modified: 2013/01/18 12:12 by cellbiol