Month: March 2020

How Does a Blockchain Prevent Double-Spending of Bitcoins?

The bitcoin white paper, published in 2008, introduced the world to the first working peer-to-peer electronic cash system. The document’s pseudonymous author, Satoshi Nakamoto, delivered the first bitcoin client via SourceForge in 2009 and bitcoin was born. At the heart of bitcoin’s success was its ability to solve the problem of double-spending that had plagued …

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How ElasticSearch Works (Basic Concepts)

Table of Contents Basic components Index Document  (the core data containing unit) Shard (so-called Primary Shard) Replica Shard The good of having more replica shards The bad of having more replica shards Index Mapping (Index Schema) Useful resources I’m going to skip the intro about Elasticsearch and it’s primary application (which is for search) and …

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Kubernetes Tutorial

PrefaceIn this article, you will learn about Kubernetes and develop and deploy a sample application. To avoid being repetitive and to avoid conflicting with other resources, instead of addressing theoretical topics first, this article will focus on showing you what you need to do to deploy your first application on a Kubernetes cluster. The article…

Blockchain Explained – Intro – Beginners Guide to Blockchain

The content of this page was updated in July 2019, with an excerpt from the book Token Economy by Shermin Voshmgir. Blockchain builds on the idea of P2P networks and provides a universal data set that every actor can trust, even though they might not know or trust each other. It provides a shared and trusted ledger …

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6 Blockchain Best Practices Enterprises Need to Know – Hyperledger

The use of blockchains in business IT is still emerging as companies continue to explore new ways to use the technology. Its strength as a platform to build new generations of transactional applications that will allow users to establish trust and maintain high security for their data and processes is one of its greatest promises …

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Secure Development Recommendations – Ethereum Smart Contract Best Practices

 This page demonstrates a number of patterns which should generally be followed when writing smart contracts. The following recommendations apply to the development of any contract system on Ethereum. External Calls Use caution when making external calls Calls to untrusted contracts can introduce several unexpected risks or errors. External calls may execute malicious code …

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Docker — A Beginner’s guide to Dockerfile with a sample project

A step by step guide to understanding the Dockerfile Photo by Roger Hoyles on UnsplashAutomatic creation of Docker images through Dockerfile Dockerfile is used to automate the Docker image creation. Docker builds images by reading instructions from the Dockerfile. We will understand Dockerfile instructions by building a sample project. clone the below repo for all …

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Kubernetes Certification Training

No data foundMMadhu Krishna Kumar Student at amrapali institute of technology and science Mehul Dave JDA Solution Architect Lead/Manager , Capgemini Bhairav Mehta Senior Program Manager at Apple Vaibhav Nitturkar DevOps | Cognitive Computing | Infrastructure Automation Sunil Bhardwaj Solution Architect STILL HAVE QUESTIONS. CALL US 1415 682 6002 READ MORE TESTIMONIALS Sriram speaks about…

Hyperledger Fabric

Hyperledger Fabric is a modular blockchain framework that acts as a foundation for developing blockchain-based products, solutions, and applications using plug-and-play components that are aimed for use within private enterprises. Hyperledger is an enterprise-grade, open-source distributed ledger framework launched by the Linux Foundation in December 2015. Fabric is a highly-modular, decentralized ledger technology (DLT) platform that …

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