(This article was originally published by Datormagazin. Republished with permission) Kaffeautomat med bitcoin Den krypto-anarkiska valutan Bitcoin är i ropet i media. Nästan varje dag kan man numera läsa artiklar i dagspressen om Bitcoins för och nackdelar. I den här artikeln presenterar vi en enkel tillämpning av …

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I use a number of qemu based android-x86 for various purposes, such as storing proprietary certificate handling software in them. One of the virtual machines suddenly refused to boot. It kept hanging during the display of the android logo in the early boot sequence. Booting the virtual machine in debug mode revealed …

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In sweden we have a system for online authentication that is pretty curious in many ways. It's called BankID, and are issued by, yes, banks. It's not just useful for banks though, you can use it to access public service functions. The thing that makes the system curious in my view, is that its run by the banks, and the …

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I happened to missplace my Pebble charging cable, and I was travelling with no electronics stores near. Its quite easy to make an emergency one with just a spare usb cable, and a piece of tape. Cut off the cable and pull out the red and blue cords. tape the cords to the pebble charging pads. If you get them wrong …

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I have a lot of disks. Some mechanical, and some SSD:s. Normally I get Enterprise grade SSD:s, but not always. Two OCZ SSD:s died recently, with just a short time intervall in between. With mechanical disks, you normally get some kind of warning. Maybe checksums start to fail, maybe there is an increase in noise level. …

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My current smartphone is so unreliable now I need to fall back to a dumbphone. Rather than running out to buy a new smartphone, I will log here what it feels like with a dumbphone. I will do this to see what I really need, and I dont want to fork out 5 kkr on a phone that is obsolete before i even get it. First of all, …

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Upgrading Fedora is pretty safe most of the times. This one time I had issues with the openssl package having a change that wasnt compatible with x2go. Since I use x2go all the time I wanted to pin the version of openssl to libssh-0.5.5-1.fc20. 1yum install yum-plugin-versionlock 2yum versionlock libssh And that was …

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I read a lot of floss mailing lists, and hang around on freenode. I counsider myself a part of the community. Sometimes i think though, that some people simply dont know how to be nice. They would seem to have insults and belitteling comments bound to shortcuts in their editors of choice. Living, as i do, inside emacs, …

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I use Emacs all the time. My most important Emacs runs in my own server, which I access remotely either through a tty terminal, or a graphical session. The terminal can either be plain ssh, or mosh. The graphical session is x2go at the moment. Since I always want an Emacs running, and I want to access the same emacs …

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I've bought some new work equipment for 2014. A MS Surface Pro running Fedora and an Ergodox keyboard. The idea is that I more or less never want to change the keyboard, but the computer part more often. So far I'm making progress, but I'm still not as produktive with my new setup as with my old trusty Thinkpad. The …

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