(www.MaritimeCyprus.com) Developments in connectivity and the transfer of data in greater volumes between ship and shore continue to bring significant gains for fleet management efficiency and crew welfare, but they also increase the vulnerability of critical systems onboard vessels to cyber attacks. A 2019 recorded 58% of respondents to a survey of stakeholders as confirming that cybersecurity guidelines had been incorporated into their company or fleet by 2018. The increase over the 37% giving this answer in 2017 explained a sharp drop in the number of maritime companies reporting themselves as victims of cyber-attacks according to authors – 22% compared to 34%. However, the enduring feature of cyber threats is their ability to adapt and evolve, with new lines of attack developed as barriers are put in place, and strategies to expose vulnerabilities constantly emerging. A June 2020 White Paper from the British Ports Association and cyber risk management specialists Astaara suggests that reliance on remote working during the COVID-19 crisis coincided with a fourfold increase in maritime cyber attacks from February onwards, for example. In fact, cybersecurity was ranked as the second-highest risk for shipping in 2019, behind natural disasters, according to a survey of over 2,500 risk managers conducted by Allianz. Given that, according to IBM, companies take on average about 197 days to identify and 69 days to contain a cyber breach, it is clear that an attack on a vessel’s critical systems could threaten the safety of a ship as well as the business of shipping. The fact that a 2019 Data Breach Investigations Report from Verizon indicates that nearly one-third of all data breaches...
Nodejs is a free open source, lightweight, scalable and efficient JavaScript framework built on Chrome’s V8 JavaScript engine, and uses an event-driven, non-blocking I/O model. Nodejs is now everywhere, and has become so popular for developing software from websites, web apps to network apps and more. Nginx is an open source, high-performance HTTP server, load balancer and reverse proxy software. It has a straightforward configuration language making it easy to configure. In this article, we will show how to configure Nginx as a reverse proxy for Nodejs applications. Note: If your system already running with Nodejs and NPM, and have your app running on a certain port, go straight to Step 4. Step 1: Installing Nodejs and NPM in Linux The latest version of Node.js and NPM is available to install from the official NodeSource Enterprise Linux, Fedora, Debian and Ubuntu binary distributions repository, which is maintained by the Nodejs website and you will need to add it to your system to be able to install the latest Nodejs and NPM packages as shown. On Debian/Ubuntu On CentOS/RHEL and Fedora Step 2: Creating a Nodejs Application For demonstration purpose, we will be creating a sample application called “sysmon”, which will run on port 5000 as shown. Copy and paste the following code in the server.js file (replace 192.168.43.31 with your server IP). Save the file and exit. Now start your node application using the following command (press Ctrl+x to terminate it). Now open a browser and access your application at the URL http://198.168.43.31:5000. Access Node App from Browser Step 3: Install Nginx Reverse Proxy in Linux We will install...
Introducing: Machine Learning in R Machine learning is a branch in computer science that studies the design of algorithms that can learn. Typical machine learning tasks are concept learning, function learning or “predictive modeling”, clustering and finding predictive patterns. These tasks are learned through available data that were observed through experiences or instructions, for example. Machine learning hopes that including the experience into its tasks will eventually improve the learning. The ultimate goal is to improve the learning in such a way that it becomes automatic, so that humans like ourselves don’t need to interfere any more. This small tutorial is meant to introduce you to the basics of machine learning in R: more specifically, it will show you how to use R to work with the well-known machine learning algorithm called “KNN” or k-nearest neighbors. If you’re interested in following a course, consider checking out our Introduction to Machine Learning with R or DataCamp’s Unsupervised Learning in R course! Using R For k-Nearest Neighbors (KNN) The KNN or k-nearest neighbors algorithm is one of the simplest machine learning algorithms and is an example of instance-based learning, where new data are classified based on stored, labeled instances. More specifically, the distance between the stored data and the new instance is calculated by means of some kind of a similarity measure. This similarity measure is typically expressed by a distance measure such as the Euclidean distance, cosine similarity or the Manhattan distance. In other words, the similarity to the data that was already in the system is calculated for any new data point that you input into the system. Then,...
Let’s make our react-native app work in the browser, the right way. The code from this tutorial is available on GitHub: You can fork it and use to start new projects with code sharing 🎉 Why am I writing this? Hi 👋 I’m Bruno Lemos. I recently launched a project called DevHub – TweetDeck for GitHub and one of the things that caught people’s attention was the fact that it is an app made by a single developer and available on 6 platforms: Web (react-native-web), iOS (react native), Android (react native), macOS, Windows and Linux (electron, for now), with almost 100% code sharing between them. It even shares some code with the server! This is something that would require a team of 3+ until a couple years ago. Since then, I’ve received dozens of tweets and private messages asking how to achieve the same and in this tutorial I’ll walk you through it. What’s react-native-web? If you are not familiar with , it’s a lib by Necolas (ex Twitter engineer) to make your React Native code render in the browser. Roughly speaking, you will write <View /> and it will render <div />, making sure all styles render the exact same thing. It does more than that, but let’s keep it simple. The new Twitter was created using this technology and it’s awesome. If you already know react-native, you don’t need to learn any new syntax. It’s the same API. Summary Starting a new React Native project Turning our folder structure into a monorepo Making react-native work in a monorepo Sharing code between our monorepo packages Creating a new web...
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