Enabling web conferencing in Ubuntu Linux

Ubuntu logoUbuntu Linux and other distributions like Edubuntu, Kubuntu, Lubuntu, and Xubuntu have come in leaps and bounds in recent years and are becoming more fully featured and easier to use. I think they are now getting to the stage where they are potential replacements for Microsoft’s Windows and Apple’s OS X for elearning. Well, almost…

Web conferencing usually requires Flash

Elearning increasingly includes live multi-way video web conferencing, which on Ubuntu Linux can be problematic. Most web conferencing platforms and systems require either Adobe Flash Player or Java Runtime Environment (JRE) to be installed. If you use the standard Firefox web browser, you need to install Flash Player as an extra, since it isn’t free and open source software (FOSS) and cannot be included in FOSS distributions. Luckily, it’s easy enough to do via Ubuntu’s software centre. It’s a similar process to installing apps on a smartphone or tablet but faster and easier.

More uses of Flash in Ubuntu Linux

There are other areas where Flash Player can be useful. For example, Ubuntu Linux doesn’t have support for the H.264 video CODEC. H.264 is used all over the web, including Youtube*, Vimeo, and Google Hangouts. Adobe Flash Player is an easy workaround to allow you to access and view those services. Also, the SWF Activity Module, Online Audio Recording, Soundcloud, WizIQ, LiveStreaming, and many more plugins for Moodle, as well as Moodle’s default media player, all use Flash.

* Youtube will play video without Flash or H.264 as HTML5 but only low-resolution versions intended for some mobile phones and not all videos are available in this format.

How to install Flash Player in Chrome, Chromium, and Opera

However, installing Adobe Flash Player doesn’t make it available to all web browsers on your operating system (Even on Windows, you need to install one Flash player for Internet Explorer and then one for other browsers). If you want to install Flash Player for other web browsers in Ubuntu, e.g. Google Chrome, Google Chromium (the FOSS version of Google Chrome) or in Opera, it’s a bit more complicated. This means using the Terminal (Ubuntu’s command line; press “Ctrl + Alt + t” to open it) and carefully typing in the following commands. After the first command, Ubuntu will prompt you for your admin password, which is usually the same password you use to log in with (if you’re the computer owner):

sudo apt-get install pepperflashplugin-nonfree
sudo apt-get update
sudo apt-get autoremove

How to install Java Runtime Environment

Some video web conferencing services and systems require Java Runtime Environment (JRE) to run on your computer. Most notably, Blackboard Collaborate, formerly known as Elluminate Live, requires JRE but even with it and the Iced-Tea browser plugin installed, it can have issues with connecting the audio. This is a frustrating issue that I haven’t found a workaround for yet. Please let me know if you know of one!

You can install JRE and the browser plugin from the Ubuntu Software centre. Look for the OpenJDK Java 7 Runtime and the Icedtea Java Browser plugin and install them both. If you’re feeling more confident with using the Ubuntu Terminal (Ctrl + Alt + t), it’s quicker and easier to install them like this and it will make sure that your computer uses the latest installed version of JRE by default:

sudo apt-get install openjdk-7-jre
sudo apt-get install icedtea-plugin
sudo update-alternatives --config java
sudo apt-get update

More uses of Java Runtime Environment

There are a number of web resources and projects for elearning that require JRE. These include Tufts University’s Virtual Understanding Environment (VUE), a feature rich concept mapping tool, as well as the NanoGong audio recording, Scratch learning games, Java Molecular Editor, Easy Java Simulations (and Open Source Physics), Jmol 3D molecular chemical structure, GroupDocs Viewer plugins for Moodle all require JRE.


So it looks like Ubuntu Linux is almost there… but not quite yet. Support for multi-way video web conferencing is there and is possible but not complete, especially in the case of Blackboard Collaborate. It’s also sometimes necessary to install additional software in ways that most “normal” users may find confusing and/or discouraging to do themselves on their own computers. Additionally, many learners and teachers may not know why their web conferencing platform doesn’t work or know that it can be fixed by installing the correct software. Let’s hope things improve further in the coming months or years.

Update: Do you want to get started with Moodle?

BitNami MoodleBack in 2012 I wrote the article, Do you want to get started with Moodle? which turned out to be one of the most read and most cited articles on this blog. A lot has happened with software and web tools in the following two years so I’ve decided to write an update to it. I’ll be featuring a free and open source localhost server and web app installers from BitNami. For the record, I have no affiliation with BitNami or anyone from BitNami and have had no contact with them about writing this article.

Why run Moodle on your computer?

There are many benefits to having your own version of Moodle on your personal computer. Here are a few examples:

  • An easy way to try out and learn to use Moodle for free without making any commitments, renting servers, etc.
  • A safe sandbox where you can try things out before putting them out on the world wide web.
  • An offline environment where you can create, develop and test learning activities, resources, and courses in private before uploading them onto a public server.
  • Moodle pages will load faster, shortening the time it takes to develop activities, resources, and courses.
  • Install, test, and make sure that 3rd party Moodle plugins and services work as expected and meet your specific needs on your computer rather than on a public server.

Why write this update?

Since I wrote the original article, I’ve run into some technical difficulties with more recent versions of the localhost server (Wampserver) software I originally recommended, especially for running more recent versions of Moodle, e.g. 2.5 and 2.6. In my search for solutions I came across a number of other developers and Moodle users that were having similar issues. The solutions were far from simple or easy to resolve and so I thought it would be a good idea to find something simpler, easier, and less problematic to run Moodle on your local computer.

Why BitNami?

BitNami provides free and open source localhost installers that anyone can install and get working with the minimum of technical knowledge and, as you’ll see later in this article, the process is about as simple as it can be. There are two main options to get started with BitNami and Moodle. Let’s get started…

Option 1: Install Moodle only

The first and simplest is the all-in-one Moodle installer (-AMP stack + Moodle), which is available on Linux, Windows, and Mac. Download the appropriate one for your operating system, run it, and follow the onscreen instructions.

Important! When you have completed the installation process and you have your Moodle installation up and running and you are logged in, edit your user profile, change your user name and password, and write them down. If you don’t, you can end up getting locked out of your Moodle when you log out and have to uninstall and go through the installation process again.

Option 2: Install Moodle + other web apps

Using the previous installation method makes it difficult to install other web apps alongside Moodle, e.g. WordPress, Joomla, or ownCloud. Luckily, BitNami provides a basic “-AMP stack” installer (AMP = Apache + MySQL + PHP) which allows you to install any number of web apps along side each other. This provides a base localhost server that you can install Moodle and other web apps onto:

Important! The BitNami -AMP stack installer will ask you to provide a database password. Write your database password down and keep it in a safe place. You’ll need it to install Moodle and other web apps. Now you’re ready to install Moodle. Here are the modules to download and run that install Moodle on your -AMP stack:

Important! Again, as with the stand-alone Moodle installer, when you have completed the installation process and you have your Moodle installation up and running, and you’re logged in, edit your user profile, change your user name and password, and write them down.

Moodle logoWhat’s next?

If you’re new to learning management systems in general and/or Moodle, please be aware that they are large, complicated, but powerful and flexible software and so it takes time and effort to learn to use them. Be patient with yourself and don’t be afraid to ask for help. Whatever your interest or area of expertise, there are many books, tutorials, and courses available to help get you started. I also recommend:

Using chat to facilitate more interactive classes

chatHere’s how you can make your face to face lessons more inclusive and interactive quickly and simply by using a chat session during class, and open up a range of benefits that aren’t immediately apparent.

How does it work?

Before a face to face lesson or lecture begins, the tutor/teacher/TA opens or schedules a chat room in the course on the school’s, organisation’s, college’s, university’s, or institution’s Moodle*. All the class participants login and join the chat session. They can use their laptops, netbooks, or mobile devices. Now everyone can submit questions, requests, and comments and everyone can see each others’ during the lesson or lecture.

*Or any chat client on an elearning platform that has appropriate user management, privacy, and oversight facilities (e.g. most commercial chat services such as Facebook, Google+ don’t allow right of audit, which is necessary addressing ethical and behavioural issues), and that admins, teachers, TAs, and learners can access transcripts of previous sessions for learning and professional development (PD) purposes.

How does this affect the classroom dynamic?

  • All learners, even in a relatively large class, have the opportunity to participate in significant and meaningful ways.
  • Learners don’t have to raise their hands to interrupt the flow of the class just to have their question, request, or comment expressed and considered.
  • Less gregarious learners don’t have to compete for attention/get noticed and can therefore contribute their questions, requests, or comments more easily; everyone has an equal voice.
  • Learners can see their peers’ questions, requests, or comments whether they are addressed/focused on or not in the lesson.
  • Teachers/tutors can choose which questions, requests, and comments, in what order, and when to address/focus on.
  • Points raised by learners can be dealt with appropriately and in a timely manner and never “get lost in the moment.”
  • The transcript of the chat session is an invaluable record of what actually happened and when during the class, making it an excellent resource for critical reflection.
  • Teachers/tutors can review the transcript to see where the lesson could be improved and/or consider alternatives.
  • Teachers/tutors can see who’s participating more or less than they should be and find out why.
  • Teachers/tutors can assess learners based on their participation both quantitively and qualitatively even if it didn’t get addressed/focused on in class.
  • There’s a record of questions, requests, and comments that it may not have been appropriate to address/focus on during the lesson but could provide productive avenues of inquiry in subsequent classes.

Could it also get learners off of Facebook during class?

New readability analysis filter for Moodle

Moodle Readability filter pluginThis is a quick announcement to let you know that I’ve just started a new plugin project for Moodle. It’s a filter module that analyses text on Moodle pages and rates their readability according to the six most popular readability formulas:

 When installed and activated, it will automatically analyse texts using one of the chosen readability formulas and print a small, discreet box at the top right of the analysed text, displaying the results. Moodle’s text filters apply to all text areas and so learning content and user generated texts will have their readability level/index displayed, for example in Pages, Books, Forums, Wikis, Glossaries, Assignments, Databases, Lessons, and Labels.

I’m interested in hearing any comments and suggestions you might have for possible uses, advantages, and/or limitations of this plugin. I’d also like to keep the discussion as widely accessible as possible to all members of the Moodle community. To that end, rather than post comments here (comments are now disabled on this blog) please participate the Moodle.org discussion thread for this plugin: https://moodle.org/mod/forum/discuss.php?d=243715. It’s free and easy to join, it’s well moderated, and you’ll be in contact with thousands of other Moodlers.

The beta version of the plugin (still under development) is here. At the moment, I don’t recommend it for production sites as it hasn’t been extensively tested.

Readability of this article

  • Flesch-Kincaid Reading Ease     47.6 / 100
  • Flesch-Kincaid Grade Level     11
  • Gunning-Fog Score     12.2
  • Coleman-Liau Index     13.8
  • SMOG Index     9.7
  • Automated Readability Index     11.1
  • Average Grade Level     11.6

Update to SWF Activity Module for Moodle 1.9

SWF Activity Module logoThis is a quick update anouncement for the SWF Activity Module for Moodle 1.9. It fixes some issues that some users were experiencing with sending grades to Moodle’s grade book and some other functions. You can find the latest version released today on the project downloads page at Google Code.

What was the bug?

PHP 5.3 and above are becoming more widely used on servers that are hosting Moodle. Some of the old legacy core Moodle code contains functions that are deprecated in PHP 5.3 (some 400 or so instances of code) and are unlikely to be fixed. These deprecated functions trigger PHP to generate deprecation warnings, which in Moodle sometimes returns unexpected results that were interfering with the SWF Activity Module AMFPHP service classes. The result was that sometimes, grades weren’t being sent to Moodle’s grade book, and snapshot images from the Avatar camera and Concept Map MILAs weren’t being saved. It was an intermittent bug and difficult to track down but now, hopefully, everything should work for everyone all the time.

You can see some demos of the SWF Activity Module used to deploy Multimedia Interactive Learning Applications (MILAs) on the MILAs demo course on my R&D Moodle. You can login as a guest so no Moodle account is required.

SWF Activity Module for Moodle 2.5+

On a related topic, I’m nearing completion of a beta testing version of the SWF Activity Module for Moodle 2.5+. Please stay tuned for updates in the near future. You can subscribe to posts from this blog by clicking on the Follow tab on the bottom right of this page.