The new Docker CE makes it easy to deploy and work with Docker Swarm. I will describe how to setup a test 4 node Docker Swarm that will be further used to host a test enterprise application (a post is going to follow with that). STEP 1: First some practical considerations A Docker Swarm is… Read More: #Docker: Create and manage a Docker Swarm with Docker CE… »
There is a new Docker version released in march see Docker: New Docker release. There are some important changes, but the cool ones are in the experimental mode: – you no longer need docker-machine for lots of stuff – a new way to create Docker swarms – a new docker-compose, version 3 that supports automatic… Read More: #Docker: Install the new Docker CE in experimental mode on… »
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: Docker: New Docker release »
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: Speed up a wordpress site »
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]
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: Blog Links: SHA-1 cryptographic hash collision detection by Google »
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: #DRBD: Creating an ext4 over LVM then mount results in… »
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: Blog Links: Building a vSphere 6.5 Home Lab »
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: Docker in the datacenter with DDC »
The best way to do simple video in Linux is using the command line. This way you can do quick one liner commands that do the job fast and clean. My favourite tool is ffmpeg. Install ffmpeg: If you do not have it already installed to install ffmpeg simply do (in Fedora): Install the rpmfusion… Read More: Linux: Command line video editing »