Encrypted Duplicity Backup to European Amazon S3 Bucket

Posted on Sun 05 November 2017 in tech • Tagged with linux, ubuntu, aws, s3

This post documents how to configure AWS S3 and duplicity to do encrypted backups to the cloud.

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Posted on Fri 18 August 2017 in tech • Tagged with static analysis

This paper is really hard to come by and all scans are either incomplete or include the empty backpages. Here's a cleaned up version: Download

Spellcheck in Latex Files

Posted on Thu 10 August 2017 in tech • Tagged with LaTeX, hunspell

I use the following snippet to spellcheck latex files:

hunspell -d en_GB -t $1

Put it into a spellcheck.sh file. Then ./spellcheck.sh myfile.tex.

IntelliJ Idea application menu entry for xubuntu

Posted on Thu 25 May 2017 in tech • Tagged with xubuntu, linux

Assuming intellij has been installed to /opt/ here's how to create an application menu entry (on xubuntu). Create a file ~/.local/share/applications/intellij.desktop with the following content:

[Desktop Entry]
Exec=/opt/jetbrains/idea/bin …

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Extend a VirtualBox guest harddisk

Posted on Tue 18 April 2017 in tech • Tagged with windows, linux

I use VirtualBox for the rare cases when I need a Windows OS. The latest Win10 updates failed to install because there's not enough disk space. Apparently 30GB is not enough for a whole OS and office... ;-(

Luckily that's easy to fix:

  • Shutdown the guest
  • Make sure there are no …

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DD-WRT (kong) on Netgear R7000 and Fiber7 IPv6 configuration

Posted on Sat 21 January 2017 in tech • Tagged with dd-wrt, fiber7

I'm a fan of Netgear's R7000 hardware. Not so much of the software. Since I bought this router I was not able to get IPv6 working with my Fiber7 internet connection. The Netgear firmware does not support DHCPv6-PD which is what my provider requires. Anyway, not having IPv6 was not …

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Cups printers do not show up in Firefox (Arch)

Posted on Mon 02 January 2017 in tech • Tagged with arch, linux

If your CUPS printers do not show up in the Firefox printing dialog (but they do for example in Google Chrome) you may be missing the following package: gtk3-print-backends. Installing this solved that very annoying problem for me.

USB Keyboard not working at boot (between GRUB and disk decryption)

Posted on Sun 18 December 2016 in tech • Tagged with arch, linux

On my thinkpad I have an encrypted Arch installation setup similarly to my chromebook setup. Since I bought my a new wireless usb keyboard this thing never worked for decrypting the system. It perfectly works once Arch has started up, but for entering the password at boot I had to …

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Gitlab CE setup

Posted on Wed 02 November 2016 in tech • Tagged with nginx, gitlab, docker

The latest addition to my server at home is a Gitlab Community Edition instance. I use the docker image provided by Gitlab behind a nginx reverse proxy. Below are some notes for setting up, configuring and troubleshooting the installation.

Docker command


sudo docker run --detach \
    --publish 11180:80 …

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Ugly fonts in IntelliJ IDEA on Arch Linux

Posted on Tue 11 October 2016 in tech • Tagged with intellij, arch


intellij-jdk is now marked orphaned in AUR. I therefore stopped using this package and switched to a manual install of IntelliJ IDEA. This way the bundled jdk by Jetbrains is used automatically.

Old Post

Java fonts on Linux have been ugly for a while. Especially in an IDE it's …

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