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Archive for the 'English' Category

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 […]

DebConf16 in Capetown/South Africa: Lessons learnt

Tuesday, July 19th, 2016

DebConf 16 in Capetown/South Africa was fantastic for many reasons. My Capetown/South Africa/Culture/Flight related lessons: Avoid flying on Sundays (especially in/from Austria where plenty of hotlines are closed on Sundays or at least not open when you need them) Actually turn back your seat on the flight when trying to sleep and not forget that […]

My talk at OSDC 2016: Continuous Integration in Data Centers – Further 3 Years Later

Thursday, May 26th, 2016

Open Source Data Center Conference (OSDC) was a pleasure and great event, Netways clearly knows how to run a conference. This year at OSDC 2016 I gave a talk titled “Continuous Integration in Data Centers – Further 3 Years Later“. The slides from this talk are available online (PDF, 6.2MB). Thanks to Netways folks also […]

Event: DebConf 16

Monday, April 18th, 2016

Yes, I’m going to DebConf 16! This year DebConf – the Debian Developer Conference – will take place in Cape Town, South Africa. Outbound: 2016-06-26 15:40 VIE -> 17:10 LHR BA0703 2016-06-26 21:30 LHR -> 09:55 CPT BA0059 Inbound: 2016-07-09 19:30 CPT –> 06:15 LHR BA0058 2016-07-10 07:55 LHR –> 11:05 VIE BA0696

Event: OSDC 2016

Thursday, March 31st, 2016

Open Source Data Center Conference (OSDC) is a conference on open source software in data centers and huge IT environments and will take place in Berlin/Germany in April 2016. I will give a talk titled “Continuous Integration in Data Centers – Further 3 Years Later” there. I gave a talk titled “Continuous Integration in data […]

Revisiting 2015

Thursday, January 7th, 2016

Business: Attended four conferences (FOSDEM, cfgmgmtcamp, Linuxdays Graz and Debconf) Second year of business with SynPro Solutions, very happy with what we achieved Very intense working year (Grml Solutions, SynPro Solutions, Grml-Forensic), I worked way more than anticipated and planned but am very glad that I’ve such wonderful business partners and colleagues Technology / Open […]

DebConf15: “Continuous Delivery of Debian packages” talk

Monday, August 24th, 2015

At the Debian Conference 2015 I gave a talk about Continuous Delivery of Debian packages. My slides are available online (PDF, 753KB). Thanks to the fantastic video team there’s also a recording of the talk available: WebM (471MB) and on YouTube.

HAProxy with Debian/squeeze clients causing random “Hash Sum mismatch”

Thursday, July 2nd, 2015

Update on 2015-07-02 22:15 UTC: as Petter Reinholdtsen noted in the comments: Try adding /etc/apt/apt.conf.d/90squid with content like this: Acquire::http::Pipeline-Depth 0; It turn off the feature in apt confusing proxies. ” – this indeed avoids those “Hash Sum mismatch” failures with HAProxy as well. Thanks, Petter! Many of you might know apt’s “Hash Sum mismatch” […]

fork(), once again

Friday, May 15th, 2015

On 10th of May 2015 my lovely wife has made me a lovely present again: welcome to our family, Johanna.

The #newinjessie game: tools related to RPM packages

Monday, May 4th, 2015

Continuing the #newinjessie game: Bernhard Miklautz, contributor to jenkins-debian-glue and author of jenkins-package-builder (being in an early stage but under active development to provide support for building RPMs, similar to what jenkins-debian-glue provides for building Debian/Ubuntu packages) pointed out that there are new tools related to RPM packaging available in Debian/jessie: mock: Build rpm packages […]

GLT15: Slides of my “Debian 8 aka jessie, what’s new” talk

Tuesday, April 28th, 2015

I wasn’t sure whether I would make it to Linuxdays Graz (GLT15) this year so I didn’t participate in its call for lectures. But when meeting folks on the evening before the main event I came up with the idea of giving a lightning talk as special kind of celebrating the Debian jessie release. So […]

The #newinjessie game: new forensic packages in Debian/jessie

Friday, April 24th, 2015

Repeating what I did for the last Debian release with the #newinwheezy game it’s time for the #newinjessie game: Debian/jessie AKA Debian 8.0 includes a bunch of packages for people interested in digital forensics. The packages maintained within the Debian Forensics team which are new in the Debian/jessie stable release as compared to Debian/wheezy (and […]

check-mk: monitor switches for GBit links

Friday, January 23rd, 2015

For one of our customers we are using the Open Monitoring Distribution which includes Check_MK as monitoring system. We’re monitoring the switches (Cisco) via SNMP. The switches as well as all the servers support GBit connections, though there are some systems in the wild which are still operating at 100MBit (or even worse on 10MBit). […]

Revisiting 2014

Thursday, January 1st, 2015

Business: Attended only four conferences (FOSDEM, Linuxdays Graz, DebConf and Flowcon) due to taking care of my child each Tuesday and Friday (so it wasn’t easy to attend conferences during the week, and weekends are usually family time for me nowadays) Home office/remote work: this year was very remote work and home office focused because […]

Installing Debian in UEFI mode with some stunts

Tuesday, December 30th, 2014

For a recent customer setup of Debian/wheezy on a IBM x3630 M4 server we used my blog entry “State of the art Debian/wheezy deployments with GRUB and LVM/SW-RAID/Crypto” as a base. But this time we wanted to use (U)EFI instead of BIOS legacy boot. As usual we went for installing via Grml and grml-debootstrap. We […]

Ten years of Grml

Monday, December 22nd, 2014

On 22nd of October 2004 an event called OS04 took place in Seifenfabrik Graz/Austria and it marked the first official release of the Grml project. Grml was initially started by myself in 2003 – I registered the domain on September 16, 2003 (so technically it would be 11 years already :)). It started with a […]

Book Review: The Docker Book

Wednesday, July 23rd, 2014

Docker is an open-source project that automates the deployment of applications inside software containers. I’m responsible for a docker setup with Jenkins integration and a private docker-registry setup at a customer and pre-ordered James Turnbull’s “The Docker Book” a few months ago. Recently James – he’s working for Docker Inc – released the first version […]

kamailio-deb-jenkins: Open Source Jenkins setup for Debian Packaging

Tuesday, March 25th, 2014

Kamailio is an Open Source SIP Server. Since beginning of March 2014 a new setup for Kamailio‘s Debian packages is available. Development of this setup is sponsored by Sipwise and I am responsible for its infrastructure part (Jenkins, EC2, jenkins-debian-glue). The setup includes support for building Debian packages for Debian 5 (lenny), 6 (squeeze), 7 […]

Building Debian+Ubuntu packages on EC2

Tuesday, March 25th, 2014

In a project I recently worked on we wanted to provide a jenkins-debian-glue based setup on Amazon’s EC2 for building Debian and Ubuntu packages. The idea is to keep a not-so-strong powered Jenkins master up and running 24×7, while stronger machines serving as Jenkins slaves should be launched only as needed. The project setup in […]

Jenkins on-demand slave selection through labels

Saturday, March 1st, 2014

Problem description: One of my customers had a problem with their Selenium tests in the Jenkins continuous integration system. While Perl’s Test::WebDriver still worked just fine the Selenium tests using Ruby’s selenium-webdriver suddenly reported failures. The problem was caused by Debian wheezy’s upgrade of the Iceweasel web browser. Debian originally shipped Iceweasel version 17.0.10esr-1~deb7u1 in […]