Recent posts

Thunderbird: Importing s/mime certificate failed

3 minute read

thunderbird

On http://kb.mozillazine.org/Getting_an_SMIME_certificate you get a list of free s/mime certificate.

I ordered a free 30 days certificate at globalsign: https://www.globalsign.com/en/personalsign/trial/

The import of the pkcs12 failed in Thunderbird with the message: “The PKCS #12 operation failed for unknown reasons.”

Searching the internet didn’t provide a solution. To debug this issue I started to extract the private / certificate from the pkcs12 file provided by globalsign and creating a new one.

To execute this command I use an encrypted luks volume.

Create a new pkcs12 file

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Lookat 1.4.4 released

less than 1 minute read

Lookat 1.4.4 is the latest stable release of Lookat/Bekijk the userfriendly file browser/viewer.

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Running Docker on ARM

22 minute read

odroid

I own an odroid u3 that I used for my media center with xbmc while I like the performance of the Exynos4412 CPU but the drivers for the Mali GPU aren’t opensource.

I like ARM but unfortunatelly a lot of the ARM soc’s have no opensource drivers for the GPU

The manufacturer of the odroid u3 - hardkernel - provides ubuntu 14.04 images with xbmc and mali support. It isn’t possible to get the newer of version of xbmc - now kodi - running, or I didn’t succeed withit. I’ll look for another solution for my media server needs this might be my raspberry pi 1 model B+ that is laying around doing nothing running openelec

odroid

Like I said I like the performance of the ordoid U3 that why I installed archLinuxArm to play with Docker. I could have sticked with Ubuntu 14.04 but with Arch Linux I get more up-to-date software.

The installion was pretty straightforward even the docker installation was the same as on a x86 platform.

Since we are using docker on arm we have to build our own docker base images instead of using the docker registery. I have security concerns about installtion and using unsigned non-verified software anyway. If you build your own image it possible to audit/verify the build process.

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