Adding hosts to DNS via Ansible

Overview I’m running a dynamic Nameservice for my datacenter authorative for example.com. Now i want to add address records and reverse pointer records to dns to be able to resolv names. Solution To achieve this i added variables to my inventory: cat /etc/ansible/hosts  [glusterleft] gluster11 fqdn=gluster11.example.com. ipaddress=172.16.20.103 reverse=103.20.16.172.in-addr.arpa. gluster12 fqdn=gluster12.example.com. ipaddress=172.16.20.104 reverse=104.20.16.172.in-addr.arpa. [glusterright] gluster21 fqdn=gluster21.example.com. ipaddress=172.16.20.203 […]

[Howto] Rebase feature branches in Git/Github

Updating a feature branch to the actual state of the upstream main branch can be troublesome. Here is a workflow that works – at least for me. Developing with Git is amazing, due to the possibilities to work with feature branches, remote repositories and so on. However, at some point, after some hours of development, … Continue reading [Howto] Rebase feature branches in Git/Github

[Howto] Rebase feature branches in Git/Github

Updating a feature branch to the actual state of the upstream main branch can be troublesome. Here is a workflow that works – at least for me. Developing with Git is amazing, due to the possibilities to work with feature branches, remote repositories and so on. However, at some point, after some hours of development, … Continue reading [Howto] Rebase feature branches in Git/Github

Using my fedora laptop as OpenShift demo center

Overview I’m setting up a an OpenShift demo following the helloworld-msa: https://htmlpreview.github.io/?https://github.com/redhat-helloworld-msa/helloworld-msa/blob/master/readme.html The laptop i’m using is a lenovo thinkpad running Fedora 23. The notebook is used for my day 2 day work and additionally as a presentation and demo laptop. Setting up the OpenShift Demo is therefore a natural step. Preparing the Demo Installing vagrant I […]

[Short Tip] Workaround MIT-SHM error when starting QT/KDE apps with SUDO

Starting GUI programs as root usually is not a problem. In worst case, sudo inside a terminal should do the trick. However, recently I had to start a QT application as sudo from within GNOME. It was the yubikey configuration GUI, a third party tool thus not part of any desktop environment. Executing the app … Continue reading [Short Tip] Workaround MIT-SHM error when starting QT/KDE apps with SUDO

Configuring 2 HP 1920 switches

Overview I’m setting up 2 data centers with 2 HP 1920 24 port switches. These switches need to server more than one LAN (1) which makes VLAN-configuration necessary. Having one Switch in each DC brings the need to have some switch-interconnect to spread the VLANs over both switches as single broadcast domains. As i do […]