How to bulk add an ssh key to multiple servers

If you need to add a colleague’s ssh key to multiple servers that share a similar name, you can do it with a simple one liner. In this post I will show you how. Assuming the servers you need to add they key to are called: server1.example.com server2.example.com server3.example.com server4.example.com etc… And your colleagues key [...]

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Raspberry Pi Measurements & Dimensions

I was asked by Tim Lossen on one of my previous Raspberry Pi posts if I could take some measurements of the Pi board so that he could complete a 3D model of it that he is working on. Unfortunately, we don’t have a ruler in our house, so I’ve printed off some ruler sheets, [...]

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Raspberry Pi playing a 1080p video

In this short clip, I use my Raspberry Pi board to play a 1080p video – Big Buck Bunny. The playback is flawless with no interruptions. The commands used were: sudo /opt/vc/bin/vcfiled sudo /opt/vc/bin/ilplayer /home/pi/big_buck_bunny_1080p_h264_ac3.mkv Big Buck Bunny is a short animated film by the Blender Foundation - (c) copyright 2008, Blender Foundation / www.bigbuckbunny.org.

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Raspberry Pi #8 First Photoshoot

I came home from work this evening to find a small brown parcel containing a Raspberry Pi beta board that I had won in an ebay auction earlier this week. It was a charity auction with all the proceeds go to supporting the Raspberry Pi foundation whose aim is to promote computer science and electronics at [...]

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Raspberry Pi Beta Boards Raise Over £16,000 in ebay auctions

The Raspberry Pi Beta Board auctions have now finished, raising a total of £16,336 for the Raspberry Pi Charity. The lowest winning bid was £930 for board 9 The highest winning bid was £3,500 for board 1 You can view the full spreadsheet here.

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How to locate a previously submitted P60 or P45 on the HMRC Employers Portal

It always takes me a while to find the list of previously submitted documents on HMRC’s employers portal. So here are the steps for future reference: Login to HMRC Online Services – https://online.hmrc.gov.uk/ On the services home page, click through to PAYE for Employers. Click File PAYE return and forms online in the top right hand [...]

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Green Easing – Save the planet while saving the economy

So we are now 4 years in to the worst recession since the 1980s, 1970s, 1930s, records began? and it seems like we are going to be stuck this way for a long time. Governments, individuals and companies around the world have racked up massive debts during the boom years, but they are now struggling [...]

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How to deploy Zimbra ZCS Open Source Edition on Amazon EC2

This guide should help you deploy Zimbra ZCS 7.1.3_GA on an Ubuntu 10.04 instance with Amazon EC2. Prerequisites 1) Ensure you have set up Amazon EC2 CLI scripts … Download tools from here http://aws.amazon.com/developertools/351 Generate certificates in the security credentials section of AWS control panel Set up environment variables in your .bash_profile (using your key paths, [...]

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Sharing S3 Buckets and all sub folders

I recently needed to share an S3 bucket and all the sub-folders (objects) within it, but it wasn’t immediately obvious how to do it. After some experimentation I discovered the following solution. If you want to give someone full read access to all objects within a bucket. You must: Set up the ACL on the [...]

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Import your own RSA SSH key into Amazon EC2

I read a few weeks ago that Amazon now allow you to import your own RSA keys into EC2, but at the time I couldn’t find anywhere that explained how to do it. However, I have now found out how thanks to an egyptian blogger. It doesn’t look like it’s currently possible through the AWS [...]

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