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A Simple Server Cluster Design PDF Print E-mail
Written by Administrator   

Tags: cluster server moodle

This item is the first of a series I will be doing to document a simple Server Cluster design that I have used.This has come about from requests in the Moodle community where clustering of servers is required to provide redundancy and increased performance.

The design will be deployed on two physical servers, using a Virtual Machine environment with four virtual servers per machine. Each server will host a load balancer, a web server, a file server, and a database.


Perseid Meteor from Space PDF Print E-mail
Written by Administrator   
This stunning photograph taken by NASA astronaut Ron Garan through a space station window, a single Perseid meteor was captured as the piece of comet dust slammed into the Earth's atmosphere.

Such beauty!!

RoboBird PDF Print E-mail
Written by Administrator   
Saturday, 06 August 2011 23:01
From the TED Conference in Edinburgh July 2011
Last Updated on Monday, 08 August 2011 07:53
Privacy and Security Issues with Cloud Computing PDF Print E-mail
Written by Administrator   
Saturday, 18 June 2011 20:16
For some time I've watched as New Zealand businesses have been seduced by the so called advantages of Cloud Computing.

In a manner similar to drug pushers, they dole out free "hits", they eschew free services that entice business owners to send their IT provisioning to places unknown overseas. The glamour of the websites, extolling these services, appears to induce a feeling of security, all the while containing many a fish hook.
Last Updated on Monday, 20 June 2011 00:18
A Peek at Moodle 2.0 - Part 1 PDF Print E-mail
Written by Administrator   
Saturday, 01 January 2011 07:08

MoodleMoodle 2.0 was recently released, and I'll try here to give some idea of what the transition from the Moodle 1.* releases to Moodle 2.0 will mean to everyone.

Now there will be different effects depending upon whether you are a student, a teacher, administrator, or developer. I'll try and keep it simple.

Major System Rewrite

Moodle 2.0 is a major rewrite of the base Moodle software, with changes to the Themes, Modules & Blocks, and consequently all areas of functionality.

This means that the themes that worked for version 1.* may most probably not work for version 2.0. So one of the major effects will be the need to rewrite any custom themes that have been created.

However, the theme upgrade has given Moodle a much more cleaner look, and a faster execution. So well worth the move.


Last Updated on Saturday, 01 January 2011 19:33
A Peek at Moodle 2.0 - Part 2 PDF Print E-mail
Written by Administrator   
Saturday, 01 January 2011 19:12


Moodle 2.0In this article I will look at the new ways in which Moodle 2.0 handles files and resources.


Moodle Resources

In Moodle "Resources" are the documents and files we use to present information, or content for our Courses. They may be text, graphics, or multi-media.

When selecting a resource in Moodle 1.*
we had the following options

In Moodle 2.0 this is now updated to:


Last Updated on Saturday, 01 January 2011 20:22
How to create a very strong password PDF Print E-mail
Written by Administrator   
Monday, 20 September 2010 23:15

Login PasswordsAn article on the BBC recently called for people to use stronger passwords in the wake of more computational power available to hackers. We know that security needs to scale as computers become more powerful because security is ultimately a numbers game. A hacker needs to guess the correct numbers to get to the encrypted data and security is all about the amount of time he will likely need to guess those numbers.

This article by Emmanuel Carabott explains the current state of play for hacking passwords.



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