Docker: New Docker release

By | March 11, 2017

In an early March announcement Docker changed the way new versions are released and also branched it to Docker Community Edition (CE), Docker Enterprise Edition (EE) and Docker Cloud. The new Docker EE has some additional features like Docker Datacenter providing integrated container management and security from development to production. That makes the Docker environment a… Read More »

Technology fail: When your plane has an engine problem

By | December 22, 2017

This is an old video from 2015 when I was trying to cross the Atlantic (Frankfurt – Cancun) and my flight got an engine problem after just 2 hours in the flight. What you can see in the video is the plane dumping fuel so we can land. I think there was some strange smelling… Read More »

Speed up a wordpress site

By | February 28, 2017

Having a lot of issues with the blog, especially with the page load time got me thinking that I need to do a change. There are several articles on the internet on how to speed up your WordPress blog. Here is my take on it. STEP 1: Find a good host. Very important to have… Read More »

Failed technology: The ATM that is shutting down

By | February 25, 2017

I tried to pay some bills at my bank ATM and this was the message that was displayed on the ATM: Hard to pay the bills when the ATM is shutting down 🙂 And yes is a Windows XP, the best Windows up to date 🙂 Banks know their safe technology. [paypal_donation_button]

Blog Links: SHA-1 cryptographic hash collision detection by Google

By | March 19, 2022

Google puts another nail in the coffin for SHA-1. They already moved from using SHA-1 on their products but there are still a lot of places where is used by default. In a post on the Google Online Security Blog Announcing the first SHA1 collision Google researchers claim that they have a good way of… Read More »

#DRBD: Creating an ext4 over LVM then mount results in detach on RHEL 7 on VMWare

By | March 7, 2017

There is an interesting case of failing technology due to an unimplemented feature. See the following mail list thread for the original post. Basically if you deploy DRBD and one of the endpoints is a vmware virtual machine: – when trying to mount a newly created etx4 file-system over the LVM from the drbd device… Read More »

Blog Links: EPRS Report – How blockchain technology could change our lives

By | February 23, 2017

The EPRS (European Parliamentary Research Service) prepared an in-depth analysis of blockchain and published an interesting report. Take a look at the pdf: How blockchain technology could change our lives [paypal_donation_button]

Blog Links: Card payments and banking made easy

By | February 17, 2017

This is an interesting API to process card payments from your web or Android applications BlueSnap API. I really like when gems like this start to be available. You can spin up your card processing side of the business in minutes. Another interesting german start-up is the The Open Bank Project. Their open source API… Read More »

Blog Links: Building a vSphere 6.5 Home Lab

By | February 17, 2017

This is the kind of tutorials I like to distribute. Building a vSphere 6.5 Home Lab The above is a very well written tutorial on how to deploy VSphere on a home lab system. In the tutorial they use an Intel NUC but a HP Microserver GEN8 is even better. Take a look and have… Read More »

Docker in the datacenter with DDC

By | March 3, 2017

Docker starts to look like a competitor to virtualization environments like VMWare VSphere deplyments. In the following knowledge base article Docker Reference Architecture: Docker Datacenter Best Practices and Design Considerations there is a very interesting presentation on how to migrate a datacenter to docker. Docker Datacenter (DDC) is the enterprise container platform from Docker to… Read More »