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Author Archive

Bookdump 01/2019

Friday, August 9th, 2019

Mein Ziel für 2019 war es, mindestens 24 Bücher, also im Schnitt 2 Bücher pro Monat, zu lesen. Das Ziel habe ich mit Anfang/Mitte August früher als erwartet erreicht. Mir fehlen leider ein wenig Zeit/Motivation und Praxis für ausführlichere Bücher-Review, und wenn ich es mir nicht gleich aufschreibe, verliere ich auch den Überblick über die […]

Some useful bits about Linux hardware support and patched Kernel packages

Wednesday, July 31st, 2019

Disclaimer: I started writing this blog post in May 2018, when Debian/stretch was the current stable release of Debian, but published this article in August 2019, so please keep the version information (Debian releases + kernels not being up2date) in mind. The kernel version of Debian/stretch (4.9.0) didn’t support the RAID controller as present in […]

Vortrag: Best Practices in der IT-Administration, Version 2019 @ GLT19

Monday, July 29th, 2019

Es ist schon ein Weilchen her, aber nachdem mich noch immer Leute darauf ansprechen: Auf den Grazer Linuxtagen 2019 (GLT19) war ich als Referent mit einem Vortrag zum Thema “Best Practices in der IT-Administration, Version 2019” vertreten. In dem 25-minütigen Vortrag geht es um die moderne IT-Administration und welche Best Practices es im Jahr 2019 […]

(Not really) Revisiting 2018

Friday, July 26th, 2019

Mainly to recall what happened last year and to give thoughts and planning for upcoming year(s) I usually revisit the last year (previous years: 2017, 2016, 2015, 2014, 2013 + 2012). But the end of 2018 and beginning of 2019 were quite stressful (mainly business wise) and I was lacking time and motivation to actually […]

Debian buster: changes in coreutils #newinbuster

Friday, July 26th, 2019

Debian buster is there, and similar to what we had with #newinwheezy, #newinjessie and #newinstretch it’s time for #newinbuster! One package that isn’t new but its tools are used by many of us is coreutils, providing many essential system utilities. We have coreutils v8.26-3 in Debian/stretch and coreutils v8.30-3 in Debian/buster. Compared to the changes […]

Debian buster: changes in util-linux #newinbuster

Friday, July 26th, 2019

Debian buster is there, and similar to what we had with #newinwheezy, #newinjessie and #newinstretch it’s time for #newinbuster! Update on 2019-07-26 22:55 UTC: Cyril Brulebois pointed out, that findmnt (find a filesystem) was available in Debian/stretch already as part of the mount package, updated the blog post accordingly One package that isn’t new but […]

Inception: VM inside Docker inside KVM – Testing Debian VM installation builds on Travis CI

Wednesday, July 25th, 2018

Back in 2006 I started to write a tool called grml-debootstrap. grml-debootstrap is a wrapper around debootstrap for installing Debian systems. Using grml-debootstrap, it’s possible to install Debian systems from the command line, without having to boot a Debian installer ISO. This is very handy when you’re running a live system (like Grml or Tails) […]

Vortrag: Best Practices in der IT-Administration, Version 2018 @ GLT18

Tuesday, May 8th, 2018

Auf den Grazer Linuxtagen 2018 (GLT18) war ich als Referent mit einem Vortrag zum Thema “Best Practices in der IT-Administration, Version 2018” vertreten. In dem 25-minütigen Vortrag geht es um die moderne IT-Administration und welche Best Practices es im Jahr 2018 gibt. Es gibt den Vortrag als Videomitschnitt auf YouTube sowie in verschiedenen Formaten auch […]

Event: Infracoders-Graz – Best Practices in der IT-Administration

Saturday, March 17th, 2018

Am Dienstag (20.03.2018) findet das nächste Treffen der Infracoders-Graz statt. Ich wurde eingeladen einen Vortrag zu halten und werde zum Thema “Best Practices in der IT-Administration” referieren. Was: Vortrag zu “Best Practices in der IT-Administration” Wann: Dienstag, 20.03.2018 um 19:00 Uhr Wo: Aula X Space, Georgigasse 85, Graz Eintritt frei

Revisiting 2017

Monday, January 1st, 2018

Mainly to recall what happened last year and to give thoughts and planning for upcoming year(s) I’m once again revisiting the last year (previous years: 2016, 2015, 2014, 2013 + 2012). Here we go: Events: none (not even Grazer Linuxdays), on purpose Technology / Open Source: lots of work around Proxmox + Ceph finally released […]

Usage of Ansible for Continuous Configuration Management

Saturday, December 16th, 2017

It all started with a tweet of mine: I received quite some feedback since then and I’d like to iterate on this. I’m a puppet user since ~2008 and since ~2015 also ansible is part of my sysadmin toolbox. Recently certain ansible setups I’m involved in grew faster than I’d like to see, both in […]

Grml 2017.05 – Codename Freedatensuppe

Wednesday, June 14th, 2017

The Debian stretch release is going to happen soon (on 2017-06-17) and since our latest Grml release is based on a very recent version of Debian stretch I’m taking this as opportunity to announce it also here. So by the end of May we released a new stable release of Grml (the Debian based live […]

The #newinstretch game: dbgsym packages in Debian/stretch

Friday, May 26th, 2017

Debug packages include debug symbols and so far were usually named <package>-dbg in Debian. Those packages are essential if you’ve to debug failing (especially: crashing) programs. Since December 2015 Debian has automatic dbgsym packages, being built by default. Those packages are available as <package>-dbgsym, so starting with Debian/stretch you should no longer look for -dbg […]

The #newinstretch game: new forensic packages in Debian/stretch

Thursday, May 25th, 2017

Repeating what I did for the last Debian releases with the #newinwheezy and #newinjessie games it’s time for the #newinstretch game: Debian/stretch AKA Debian 9.0 will include a bunch of packages for people interested in digital forensics. The packages maintained within the Debian Forensics team which are new in the Debian/stretch release as compared to […]

Debian stretch: changes in util-linux #newinstretch

Friday, May 19th, 2017

We’re coming closer to the Debian/stretch stable release and similar to what we had with #newinwheezy and #newinjessie it’s time for #newinstretch! Hideki Yamane already started the game by blogging about GitHub’s Icon font, fonts-octicons and Arturo Borrero Gonzalez wrote a nice article about nftables in Debian/stretch. One package that isn’t new but its tools […]

Debugging a mystery: ssh causing strange exit codes?

Thursday, May 18th, 2017

Recently we had a WTF moment at a customer of mine which is worth sharing. In an automated deployment procedure we’re installing Debian systems and setting up MySQL HA/Scalability. Installation of the first node works fine, but during installation of the second node something weird is going on. Even though the deployment procedure reported that […]

Revisiting 2016

Wednesday, January 4th, 2017

Mainly to recall what happened last year and to give thoughts and planning for upcoming year(s) I’m once again revisiting the last year (previous years: 2015, 2014, 2013 + 2012). Here we go: Events: attended three conferences (OSDC in Germany, Linuxdays Graz + Debconf16 in Capetown) invited panel participant at Digitaldialog Privacy Technology / Open […]

Event: Digitaldialog Privacy

Friday, November 25th, 2016

Digitaldialog ist eine Veranstaltungsreihe der Steirischen Wirtschaftsförderung SFG. Am Dienstag den 29.11. findet der Digitaldialog zum Thema Privacy statt. Ich wurde eingeladen an der Podiumsdiskussion teilzunehmen und freue mich auf interessante Fragen aus dem Publikum. :) Weitere Informationen zum Event gibt es auf der SFG-Website und im Event-Flyer (PDF). Datum: Dienstag, 29.11.2016 ab 16:00 Uhr […]

Kinderbetreuungsgeld in Österreich, Schwerpunkt Selbständige

Thursday, September 1st, 2016

“Die wertvollste Zeit meines Lebens war die Papa-Karenz. Meine Zwillinge haben nun ein völlig anderes Verhältnis zu mir. Und ich zu ihnen. Wer darauf freiwillig verzichtet, ist selbst schuld. — Florian Klenk (Journalist und Chefredakteur des Stadtmagazins FALTER) Das kann ich so absolut unterschreiben. Bei mir waren es zwar nicht Zwillinge, sondern 2 Töchter mit […]

systemd backport of v230 available for Debian/jessie

Thursday, July 28th, 2016

At DebConf 16 I was working on a systemd backport for Debian/jessie. Results are officially available via the Debian archive now. In Debian jessie we have systemd v215 (which originally dates back to 2014-07-03 upstream-wise, plus changes + fixes from pkg-systemd folks of course). Now via Debian backports you have the option to update systemd […]