Tech

Firmware Update of Dragino LGT-92 GPS Tracker with ST-LINK/V2

How to upgrade a Dragino LGT-92 GPS Tracker with an ST-LINK/V2 under Linux.

Tech

LoRaWAN GPS Tracker Dragino LGT-92 and OwnTracks

The Dragino LGT-92 LoRaWAN GPS tracker is a very cool Open Source device to do some experiments with LoRaWAN. I always wanted to have a real-life example for LoRaWAN to

Tech

Open Source Point of Sales (PoS) with Odoo

For events of our local fire fighter department (Feuerwehr Urdorf) I wanted to have a Point of Sales (PoS) system to serve beer and sausage fast. After a good amount of research I settled with Odoo. This blogpost describes the story behind.

Tech

Kubernetes on OrangePI ARM64

At the beginning, there was this little idea to have a Kubernetes cluster to take with me to conferences and learn more about the inner workings of Kubernetes. And then,

Tech

Digitale Gesellschaft - Winterkongress 2018

Am 24. Februar 2018 fand der erste Winterkongress des Vereins Digitale Gesellschaft im Zentrum Karl der Grosse mitten im Niederdorf in Zürich statt. Die Themen waren breit gefächert: Von Politik,

Tech

pylokid - Lodur Hilfsprogramm

pylokid, ein Hilfsprogramm zum Umgang mit dem Feuerwehrverwaltungsprogramm Lodur. In meiner Funktion als Fourier in der Feuerwehr Urdorf habe ich unter anderem die Aufgabe, Einsätze im Lodur zu erfassen. Dies

Tech

Mailhosting with Hosted Mailcow at Servercow

The time has come where I stopped self-hosting E-Mail ever since I own tobru.ch (First registration date: 2001-10-26). It was a long journey: From hosting on an embedded PC

Tech

OpenShift oc cluster up as Systemd Service

Running a single node OpenShift cluster is very easy with oc cluster up. It's also very easy to run it as system service with persistent configuration, so that on system

Tech

Sailfish X - Sony Xperia X

This post describes my experience with Sailfish X on a Sony Xperia X Single SIM (F5121). What is Sailfish X? It simply is Sailfish OS adapted to run on the

Tech

RuuviTag with C.H.I.P - BLE - Node-RED - InfluxDB and Grafana

A few weeks ago I received my RuuviTag. It is a small Bluetooth BLE device which contains a few sensors, including temperature, relative air humidity, air pressure and acceleration. The

Tech

KeyBox on OpenShift

KeyBox is a web-based SSH console that centrally manages administrative access to systems. I wanted to install KeyBox on OpenShift, so I created a Dockerfile and an OpenShift template for

Tech

Moving from Jekyll to Ghost

It's that time again: After moving from TYPO3 to Wordpress to Jekyll over the years I'm now moving my website to Ghost and consolidate tobru.ch and tobrunet.ch into

Tech

Automate Knot Zonefiles with Gitlab CI and Docker

Managing DNS zonefiles just got easier and more robust thanks to Gitlab CI. The presented workflow is based on a Git repository saved in a Gitlab instance and Gitlab CI which runs some scripts in a Docker image. This Docker image contains tools and

Tech

Dive into OpenShift v3

This article has originally been written for SysAdvent 2015 Over the last year there has been a lot of buzz around open-source Platform-as-a-Service (PaaS) tools. This blog will give you

Tech

Drupal 8 on OpenShift Origin

Since a few weeks I'm exploring and learning OpenShift Origin. It's a very interesting technology and also makes me happy to learn new technologies like Docker and Kubernetes. Last week

Tech

OpenLDAP Password Policy overlay (ppolicy)

OpenLDAP has a dynamically loadable module which can enforce password policies. It allows to define policies for the userPassword attribute. Policies can define the maximum login attempts with the wrong password, maximum age of a password and many more. Here is a short introduction

Tech

VPN through HTTPS Proxy with SSH

If you are in a situation where you are locked in a network which has all ports closed to the outside, but there is a HTTP(S) proxy available, then you're lucky and can create a VPN easily using some nice tricks. Prerequisites You

Tech

GWS - Git Workspace

Have you ever used Git submodules? Then you know the pain they bring... If you just want to keep some Git repos together organized, then GWS - Git Workspace is for you! UPDATE: See How VSHN manages Hiera data files for an example use

Tech

SwiNOG #27: You have an out-of-band management network, haven't you?

bing An alert is coming in, but unfortunately your network is unreachable. What now? How would you fix this problem when you can't access your network? You don't want to go to the datacenter, because you're a RelaxOps (tm)! Good that you are prepared

Tech

CASino with Kolab LDAP backend

"CASino is an easy to use Single Sign On (SSO) web application written in Ruby" It supports different authentication backends, one of it is LDAP. It works very well with the LDAP backend of Kolab. Just put the following configuration snippet into

Tech

Kolab 3 Vagrant box with Puppet provisioning

Kolab has released it's first beta of the upcoming version 3.3. To test it on Debian I've created a Vagrantfile and a small Puppet module which provisions Kolab into a Debian VM. It's available on Github. How to use it Make sure you

Tech

Squeezebox Dashing widget

Displaying Squeezebox "Now Playing" information on a Dashing dashboard is now very easy with my widget, which can be found on gist.github.com. Just type dashing install 9714028 in your dashing root directory, the widget will be installed automatically. Include the

Tech

Jekyll git hook for drafts using branches

After using Jekyll for quite some time now, I was looking for a way to publish to a draft website before publishing to the live website. As I'm using a git hook to publish my websites (see Why and how I moved from Wordpress

Tech

bupper - A bup profile manager

bup is a backup tool based on git's packfile format. I use it every day and I'm very happy with it, except it's handling of the commandline task and that there is no way to just do a backup with all needed things (like

Tech

Jekyll meets Lychee - A Liquid Tag plugin

A missing piece on my static generated personal website tobru.ch was a nice looking, well integrated photo gallery. Some time ago I came across Lychee, a very nice looking, simple gallery. It uses JavaScript to render the content in the browser and a