mkdir Linuxing – the Linuxing In London’s newsletter issue 0, September 2016


Welcome to the first edition of our newsletter. We are aimed squarely at popularising the use of technology, open source and Linux and as a result our content is very varied, not just plain old Linux or BSD.

This newsletter contains links we thought might be useful to members of our MeetUp group.

It provides a wide sampling of technology and events. We dont believe that technology should be confined to a few aficionados or those in the know and our newsletter reflects that.

If you have attended one of our meetings youll know we like freebies, this newsletter is no exception. Some of the events include discount codes, please use them!

The format of this newsletter is somewhat experimental.

There is a section for Jobs towards the end. We will include in a Wanted/Recycling section if there is demand.

If youve never been to a Pi Jam before I would recommend the East London Raspberry Jam, it is free and organised by Nic Hughes.

Hint: Linuxing In London are looking for volunteers to help out, and if possible a (free) designer for our Github-hosted web site. So if you fancy being artistic with Jekyll please contact Brian or David.


  1. Videos of Linuxing In London events

If you missed out on attending our events thus far, dont worry! All of our events at Skills Matters are recorded. I heartily recommend Alinas presentation as a starter.

The archive of our talks can be found here: Linuxing in London past events

  1. Linuxing In London Events

  • 22nd September 2016,: Robots, Startups and a bit of Linux, speaker: Josh Elijah. Cats Vs Dogs: Securing Linux with SELinux. A quick introduction to SELinux, and how to debug your set-up if it all goes wrong, speaker: Anthony Kesterton. Puppet on Linux: Past, Present, and Future, speaker: John Boero.

  • 19th October 2016: A Linuxing In London special: an evening with the renowned Alina Swietochowska. The evening is kindly sponsored by QA.

  1. Up-and-coming technical happenings

There is so much choice, but just a few for your delectation:


Operability.IO (paid): 19 – 20 September 2016 – Milton Court Concert Hall, Barbican, Silk St, London, EC2Y 9BH Discount code: LINUXING-OIO16

Cloud & Infrastructure Summit 2016 (free): 22nd September 2016 – etc. venues Fenchurch Street, London.

AI With The Best (online conference): 24-25th Sept – Learn from 100 AI experts including, Google, OpenAI, Netflix, Microsoft, Numenta and some amazing startups and cutting-edge machine learning researchers building the future of AI. Dscount code: 50% off with LinuxLondon; $40 instead of $80, (student tickets $20)

East London Wikimedia Meetup (free): 27th September 2016 – Waitrose Café, Canary Wharf.

AngularConnect (paid): 27 & 28 September 2016 – Excel, London


Amazon Developer Summit (paid): 4th October 2016 – CodeNode, London.

Red Hat Forum United Kingdom 2016 (free): 4th October 2016 – etc. venues Bishopsgate.

LinuxCon + ContainerCon Europe (paid): 4-6 October – Berlin, Germany.

Discount code: LCEULL10 – gives members 10% off for all-access passes

GOTO London 2016 Developer Conference (paid): 12th-14th October 2016 – CodeNode, London.

European Community Leadership Summit (free) 16 October 2016 at Hilton London Metropole, 225 Edgware Road, London W2 1JU

O’Reilly OSCON (paid): 17th– 20th October 2016 – Hilton London Metropole, 225 Edgware Road, London W2 1JU Discount code: USRG

PuppetConf 2016 (paid): 19-21 October – San Diego.

London Ruby Unconference (paid): 22 October 2016 – Hackney House, London.

East London Raspberry Jam (free): 22nd October 2016 – 12:00 16:00. Barking Library, Barking Learning Centre, 2 Town Square, Barking.

OpenStack Summit (paid): 25-28 October 2016 – Barcelona, Spain.

OpenPOWER Summit Europe (free): 26-28 October 2016 – Barcelona, Spain, co-located with the OpenStack Summit Europe.

Serverlessconf London (paid): 26-28 October 2016 – etc. venues St. Paul’s, London.

Droidcon London 2016 (paid): 27th– 28 October 2016. Business Design Centre, London. Discount Code: ESYNERGY-DISCOUNT-10

MozFest (paid): October 28-30 2016 – Ravensbourne, London. Opportunities to volunteer too.

IOT With The Best (online conference): 29-30th Oct – Join 100 speakers from Arduino, Linux, IBM, Uber, Sigfox, Aldebaran for live, interactive tech talks, demos, 1-to-1 sessions and access for 2 months!

Discount Code: 50% off with LinuxLondon $15 instead of $30 (early bird until Sep 7th then $30, $40. student tickets $20)


SUSEcon (paid): 7-11 November 2016 – Washington DC

Discount code: isrstmsc16

  1. Heap dump Brians brief editorial.

It has been some 25 years since a young Finnish student posted a simple comment on the minux Usenet group. Now Linux exists everywhere, at Google, Facebook, Mozilla and tens of thousands of other organisation. Even at Microsoft!

Linus has won, but more importantly, it opened up a new culture in computing. A non-elitist ethos where everyone can potentially participate, if they have the will, the energy and that initial technology.

Getting people to use old laptops in developing countries is one of the best projects that could exist. It shows students, poor kids, and everyone else that you just need perseverance and a good idea.

The advent of Raspberry Pi has opened up a new world for children, creativity is not merely confined to those with the most expensive hardware.

Linux has played a crucial role in democratising access to technology, but so much more to be done.

And you can play your part too!

Help your relatives, friends and colleagues reuse of those old laptops (often consigned to the bottom of the cupboard after theyve ground to a halt or been infected with numerous viruses). Encourage people to reuse technology, to give it a new lease of life.

Install Linux everywhere on everything, and you will make me a very happy old man.

  1. Around the blogs, links and even Raspberry Pi


Swift 3.0 Released!

6 essentials on Docker containers

Golang UK Conference on YouTube

Infographics: Operation Costs in CPU Clock Cycles

PiBakerynot yet there for Linux, but shows great promise. – 1

Cory LaNous Testing with Go

Lessons from launching billions of Docker containers

Alex Ellis’ tutorials for Docker + Swarm Mode on the Raspberry Pi

“Rusty Runtimes: Building Languages In Rust” by Aditya Siram

Katacoda: Interactive Learning Platform for Software Engineers

Multi-Gigabit Networking on a Budget

Xenial Xerus Ethernet Fixup for the Raspberry Pi

  1. Daves notes

Brian has asked me to put my stamp on this newsletter too. I can’t do so without very briefly describing how Linux got me here today.

In the relatively short period of time (2008) I’ve been using Linux I’ve switched from GUI distros (Ubuntu 8/Hardy Heron, Fedora 9/Sulphur), to the minimal (Crunchbang 10, BunsenLabs Hydrogen, Debian Jessie), and more recently settling on something I feel is wedged in between and brings a little colour back into my life (Manjaro LXQt).

It was only through using an indestructible Netbook that was struggling with the heavy GUI I tested a swathe of flavours. Getting rid of Windows 7 was something done one day one, and I little desire to head back that restoring route. I made the mistake of thinking I could look at the entire list on Distrowatch and find the one that looked the best. Yes I survived going down that rabbit hole.

Ultimately I began to switch from simply using Linux, to exploring through my use. Through it’s minimal interface the design of Crunchbang (and the later community branch BunsenLabs) forced you to interact with OpenBox and the command line. The excellent documentation encouraged you to learn some basic scripting to edit the distro precisely to your liking. To get comfortable using terminal.

I’m forever indebted to Crunchbang’s creator Philip Newborough in capturing my passion for Linux and I think I’ll always tweak things so they’re that little bit greyer.

  1. Command Line morsels and gotchas

Not sure about xz files? Use tar xvfJ file.tar.xz or install xz-utils and use unxz

Lost your swap file? Try cat /proc/swaps

Worried about performance? Use glances and dstat

  1. Women in tech

The role of women in technology is often downplayed despite being 51% of the population. We hear little of the immense achievements of Hedy Lamarr, Ada Lovelace or Margaret Hamilton. Hedy Lamarr invented spread spectrum technology, used every day in modern Wi-Fi, GPS and Bluetooth (

Ada Lovelace is considered to be the worlds first programmer ( Margaret Hamiltons coding skills probably saved NASAs Apollo 11(

In recent years there has been a change, an increasing desire to counter the gender imbalance in technological circles with the advent of the STEM. These are just a few of the many excellent MeetUps in and around London:

Women Who Code London

London TechLadies

Women Hack For Non Profits

Women Who Go (London)

Women In Games WIGJ Meetup Group

We are very keen to hear from any women speakers, particularly around Linux, BSD or Open Source. Please contact Brian or David.

  1. Davids bits

Onto the fun stuff I’ve checked out this month.

We forgot the cake. Yes we know we forgot the Linux 25th birthday cake at the August Meetup. You don’t know how much I love cake, so even writing this hurts. But we’re all adults. It’s the past now.

Maidsafe hit Alpha release. It’s a decentralised file platform. It’s different because it encrypts by default and you’ll earn Safecoins by contributing to the source code or helping improve the network. Conceptually it’s really ace, but it’s taken quite some time to get to this point, and forums are not short on people airing that opinion. Alpha release has work on building and hosting your website, storing private data, and sharing public data. I’ve got quite excited by the browser some members of the community are knocking together. As it’s still growing I’ve found it a nice ethical project to wrap my head around. Check them out at and the community forum at

The best way to become a *great* programmer is to reverse engineer the stuff you like. Not only was this the best advice I’ve ever had from a 15 year old who knows 15 computer languages, it was recently backed up by a software engineer at Product Hunt. I think I really need to start doing this and will let you know how I get on at the September Meetup.

I’ll leave you with this little nugget some of you may have missed. In case you were not aware, we love our penguins at Linuxing in London. And it seems Edinburgh Zoo love their penguins so much they gave one a medal.

  1. Jobs

We want to help our members so we asked Henrietta Alexander <> to provide a short listing. Please contact her (with your CV) if you feel they might suit you:

Job title: Senior DevOps Engineer

Skills: Linux/Chef/Jenkins/Docker/Jenkins/AWS

Location: Welwyn Garden City

Rate/Salary: £70,000 +

Job title: Web Operations Engineer

Skills: Linux/Docker/AWS/Jenkins/Python

Location: London

Rate/Salary: £500/day

Job title: Junior DevOps Engineer

Skills: Linux/Chef/AWS

Location: Great Portland Street

Rate/Salary: £40,000 +

Job title: DevOps Engineer

Skills: Linux/Jenkins/Maven/Ansible

Location: London

Rate/Salary: £500/day

Duration: 6months

Job title: DevSecOps Engineer

Skills: Linux/Docker/Kubernetes + Security Concepts

Location: Charing Cross

Rate/Salary: £60,000 +

  1. For the future

In future editions of mkdir Linuxing we shall try to have Wanted/Recycling Ads and we would welcome short contributions on Linux, BSD, Open Source, IoT or interesting technologies (~300 words max.).

  1. Thanks

This newsletter would not have been possible without the help of those lovely people at Skills Matter, Wendy, Russell, Nic, Herman, Fraser and Lovella. Including but not limited to Alan and his team at Red Hat, Andrew and the IBMers, Stephen at SUSE. Henrietta, Adele and Rachael at eSynergy Solutions and many more, you know who you are. 🙂

A special thanks to David for choosing the title of our newsletter.

[Note: The format of the newsletter got mucked up on the transition from LibreOffice ->RTF->Word-> LibreOffice->HTML->Github->Wordpress. Apologises, I should have know better! Brian. ]

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