Polkadot Hello World #1: Cost-Effective Cloud Deployment of a Validator Node

This tutorial is based on Polkadot POC2.  The following article series “Polkadot Hello World' describes the steps and findings during my personal kickoff phase in the area of the Polkadot multi-chain framework. In the last months, I was extensively r... Read More

The Cloud Landscape Categorization Framework By Johan Den Haan

Johan Den Hann published some time ago, its Cloud Landscape Categorization Framework, which is really helpful in order to get a better understanding of the Cloud Landscape.  It consists of 7 layers and 3 main columns. As Johan states there is a conti... Read More

DevOp Notes: Monitoring Nginx and its underlying Web Components

Under the acronym “DevOps Notes” I publish my technical findings, which were gathered during the bootstrapping phase of my first cloud based side-project, the so-called “Cloudburo Publishing Bot”. “The Cloudburo Publishing Bot Platform enables Microp... Read More

Google Data Collection Research Madness

Digital Content Next (DCN) - which is providing research and insights on current and emerging industry topics - released a very interesting report about Google’s data collection research by professor Douglas C. Schmidt of the Vanderbilt University. S... Read More

What a brilliant idea: Proof of usefulness in Crypto

David Glibertson, describes in his excellent Medium Series “My adventures in Crypto”  an new visionary idea how the mining energy wasting could be converted in some useful energy consumption by solving real world puzzles. What a nice idea, here the e... Read More

Scalability Trilemma Of A Blockchain or There Is No Free Lunch

Scalability and the slowness of Blockchains is a hot topic in the crypto community. Georgio Konstantopoulos (@LoomNetwork) provides a very good introduction to the topic in his Medium artice 'Scalability Tradeoffs:  “Why The Ethereum Killer” Hasn’t A... Read More

Google Reveals the Secrets of DevOps

A interesting article about Google's DevOps approach, which is immense. The numbers revealed by Meckfessel at the conference showed that over 500 million tests are run per day inside Google’s systems. That’s to accommodate over 4 million builds, dail... Read More

Minimal Ubuntu, on Docker Hub

Ubuntu announced its new minimal Ubuntu image optimized for automated use at scale, with a tiny package set and minimal security cross-section. Speed, performance and stability are primary concerns for cloud developers and ops.The 29MB Docker image f... Read More

Intellij: Gradle Project Fails To Deploy Tomcat Server (war:exploded)

Recently I had a problem with the deployment of a IntellJ Gradle Project Artifact to a local Tomcat Server which didn’t work out. The root cause resolution took me some time, so here is the solution to reduce your researching time. The local Tomcat S... Read More

Install Letsencrypt Certificate in the Java JDK Keystore on OSX

The following article gives a short introduction, how to import a root certificate into the Java JDK keystore on a Mac OSX. The example is based on the import of the ISRG Root X1 certificate, which is a very new certificate and not broadly trusted ye... Read More