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Building an Ethereum Environment with Docker

Docker is a powerful tool for managing containers and run-time environments and, besides its many advantages, Docker can also be handy to keep our development workstation tidy while playing with all kind of cool technologies – like Ethereum. In this article, we are going to harness the power of Docker to build a first Ethereum work and development environment.

FxControllerBridge – Micro Cross-Controller @FXML Injection Helper

The JavaFX team made the choice of allowing injection of components of one FXML file into only one controller. The reason is that developers are encouraged to defined a controller per “component” (in the larger sense). The FXML files should be modular, and composed for instance using “fx:include”. While this is definitively the right thing to do, sometimes you just don’t want to :) In this case, this little injection helper may be useful…

Modal JaxaFX Progress Indicator running in Background

There are times when one just wishes to magically pop-up a modal progress indicator while doing some hard work in the application’s background. The “modality” prevents the user from clicking around triggering all kinds of things, and the nice animation animates the spectator to stay looking at the screen trying to guess various parameters of the operation running behind. This post just explains how to do this…

IntelMQ

IntelMQ is a solution for CERTs for collecting and processing security feeds, pastebins, tweets using a message queue protocol. It’s a community driven initiative called IHAP (Incident Handling Automation Project) which was conceptually designed by European CERTs during several InfoSec events. Its main goal is to give to incident responders an easy way to collect and process threat intelligence thus improving the incident handling processes of CERTs.

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Crypto Miner Set-Up – Tanguy’s cpuminer-multi

Mining Altcoins is sometimes quite venturesome. The various download links on the Internet are often pointing to obscure file servers. In this article, we are going to compile Tanguy Pruvot’s version of the “cpuminer-multi” project, one of the most advanced CPU miner tools around, and the, than see how to use it. I also examined the behaviour from a system’s point of view .

Monero – How to Setup a Full Node under Linux

Monero is a crypto currency in the same way than Bitcoin is. Monero is however extremely different in many ways. It has different goals and does not share software and code with the Bitcoin code. Due to the decentralized and peer-to-peer nature of the Monero network, it becomes more robust and resilient as it becomes larger. Running a full node helps stabilizing and securing the network. A full node contributes to the consensus and increases the Blockchain data distribution. So…let’s set-up one…

Bitcoin, Belgium and VAT

The “VAT Question” is a widely discussed issue in the European Bitcoin and crypto currency community. It turns around the question whether profits made by acting as broker are subject to European Valued Added Tax (VAT), in the same way as profit made by trading physical goods. Concerning Belgium, there is a recent development…

DEVOXX on Security

We, the DEVOXX 2015 Security track team, want to increase security awareness among software and hardware developers. We want to make this year’s track about understanding how to break things, and knowing that this understanding allows developers to design and build more secure systems. Security has to be by design, not by feature, use case or layer. In this spirit, we would like to invite you to submit talks around the subjects on how to stress security of software projects and on how to deal with these aspects as a developer and architect. Any submission of topic ideas is very welcome too.

Doing Dependency Structure Matrices

In a few words: a Dependency Structure Matrix (DSM) is a matrix representation of a system or a project that shows the information exchanges and dependency patters between different sub-systems. It can be applied to any kind of project or system, and turns out to be very helpful for analysing IT projects. Want to know more? Just click…