Why I Have A Windows Laptop at linux.conf.au

This is just a quick blog post to get something off my chest. It’s about the open-source conference I’m currently attending, linux.conf.au. The thing is this: I run a Windows 10-based laptop, I’ve brought it with me to LCA, and I’m proud of that.

  • I use Windows for work. I’m a .NET developer. It’s how I earn my cash to attend this conference. That, apart from anything else, is why I don’t run Linux on the desktop.
  • A lot of people run Apple Mac OS X, another closed-source operating system. I don’t understand why people don’t discriminate equally against that.
  • Speaking of Apple, nobody directs ill thoughts their way at LCA. Microsoft does attract this discrimination, despite them actually releasing a large quantity of open-source software (including most of .NET) over the last couple of years.
  • I write open-source software. I write this in C# on .NET, because it will make it easier for the end users of this software to install and use, since they will be Windows users for the most part. I consider myself to be doing a lot of good by writing this software, giving users options apart from closed-source and cloud-hosted software.

In my mind, when somebody makes fun of Windows at an open-source conference, they’re buying into an anti-Microsoft herd mentality, forgetting that Microsoft does a lot of FOSS stuff, that Microsoft users do a lot of FOSS stuff, and the Apple laptops and Android phones that the majority of delegates have all contain a lot of closed-source software too.

End rant.

linux.conf.au 2012 – Day 4 (Thursday)

This week I’m at linux.conf.au, the southern hemisphere’s premier open-source conference. This year it is being held in Ballarat, about an hour’s travel from Melbourne. I’ll be documenting the trip and conference as much as I can given the limits of my enthusiasm and awakeness.

Thursday 19th January:

The Linux HA Tutorial
The Linux HA Tutorial

The morning started off with a keynote from Karen Sandler, Executive Director of the GNOME Foundation. This was a fascinating talk about the dangers behind having proprietary computer systems running our essential services, the things we rely on every day for our modern society. Her biggest example (and an amazingly powerful one) is the pacemaker that runs her heart (or gives it a jolt if it stops, at least). Attackers could quite easily crack into some of the modern pacemakers via the wireless signal they emit, and cause all kinds of damage (like giving a shock when it’s not needed, or failing to give one when it is). In addition, there are all other kinds of things we rely on (voting machines, car control software, etc.) that are closed source and pose a risk to us because of this. So basically it was about how we really need to move to open source systems to make the world a better place, not just because of reliability or business reasons.

The Penguin Dinner
The Penguin Dinner

Between morning tea and lunch I viewed included a tutorial on setting up a Linux HA cluster using pacemaker (with an example MySQL set-up) which I learned a lot from. I’m going to have to try out the techniques at home more, and see if I can apply them to my systems. I’m not sure how well these practises will work over wide-area networks though, as they’re primarily designed for LANs (as Michael Wheeler said to me, “It’s not redundant until it’s geographically redundant.”).

Michael Wheeler
Michael Wheeler seems unpleased

After lunch was another tutorial, this time on the basics of computer security. There are some crazy things you can do to try and break into a computer. I finally understand how buffer overflows work, and what can be done to prevent them (quite a lot, actually). Breaking into encryption was another strong topic. You can measure how much power a CPU is using to figure out whether it’s doing add or multiply, and things like that. But basically what you really need to do is maintain a much higher consideration of security while coding than you did before, and I hope this tutorial will help me achieve that.

After afternoon tea (during which I consumed a suspiciously large quantity of fruit… I must be craving healthy food) it was time for the talk given by my friend Chris and his friend Paris, titled “Android is not vi”. It’s probably the funniest talk I’ve seen the entire conference, and several delegates have mentioned it wouldn’t be out of place in a comedy routine. The talk was mostly about making the user experience on Android better, but with a surprise ending: the general principles apply to pretty much any user experience design, because they’re all the same. Not making the user think is pretty much the key.


Then of course, Thursday night means the Penguin dinner. This is the opportunity for the speeches and the presentation of the Rusty Wrench award, named after Rusty Russell who started running the conference back in 1999. This year it was given to Mary Gardiner for her services to the Ada Initiative, amongst other things. This is very well deserved too, as there is a nearly 20% female attendance rate at LCA this year. The meal at the dinner was also excellent. I had a pork salad starter, the chicken thigh main, and then an amazing mango cake dessert (pictured). After dinner, we received a speech by Senator Scott Ludlam on the surveillance state that Australia is turning into. 250000+ people have had some sort of police surveillance performed on them in Australia last year. Scary stuff, and I think it will only become scarier once we have heard what Jacob Appelbaum has to say in his keynote tomorrow morning. All in all, a great event.