Welcome to the Catalyst Blog

Explore our latest posts, for insights and tips on all things open source.

Catalyst blog posts - insights and perspectives for the open source software and online learning community
Gavin Porter

Moving away from Symantec Certificate Authorities

An ever-growing number of security issues have been identified with certificates issued by Symantec Certificate Authorities (CAs) over recent years. Affected certificates include...
Alex Lawn

Cutting our AWS spend in half

It often seems that, by default, our AWS monthly spends go in only one direction - up. Our AWS cost reduction strategy has evolved over time, through the work we’ve done for...
Gavin Porter

Security vulnerabilities: what you need to know

Wi-Fi KRACK Overnight, security weaknesses have been published in the WPA2 protocol used by most home and commercial Wi-Fi systems, including public Wi-Fi. The attack that...
Russell Michell

Blockchain 101

You’ve heard of bitcoin, and you read about Silk Road a while back. Bitcoin is just ‘geek money’ and you can’t possibly do anything useful with it... right? Wrong. The bar...
Evan Hanson

Vagrant and LXD

Managing Development Environments We use a variety of technologies to help us manage development environments. One of these is Linux Containers, and more...
Brendan Heywood

Under the hood of Moodle’s cron system

At Catalyst we work with a lot of clients who have pretty big Moodle instances. One of the critical parts of Moodle is the Task API aka cron system which ticks along in the...
Andrew Boag

Follow The Sun Support – One Year In

Catalyst started up in 1997, and from humble beginnings as an outsourced services company we have grown to over 250 staff globally, with seven offices across Australia, New...
Don Christie

20 Years Ago

20 years ago Jim Bolger was still our Prime Minister, the All Blacks made a clean sweep of the Bledisloe Cup and Wellington became the first city in the world to lay a fibre loop...
Donna Benjamin

What's an Inkscape?

  Inkscape is free and open source drawing software.  It’s available for Linux (of course), but also for Windows, and for MacOS too.  It’s a tool for drawing 2D...
Catalyst

Koha adventures in India

A few times a year Chris Cormack gets on a plane to somewhere really interesting to talk about Koha. Chris was the original developer of Koha and is in demand for speaking gigs...
Evan Giles

JMeter as a Load Testing Tool

Catalyst manage a lot of Enterprise web applications, enough that we are always seem to be upgrading one instance or another. More and more in the world of cloud native...
Zoe Lu

DevOpsDays Sydney 2016


  Late last year, I attended DevOpsDays Sydney 2016 Conference. This conference aims to have all participants, learning and sharing ideas of adopting DevOps...