Published: Jan 24, 2018 Tags: security Category: Engineering Hypertext Transfer Protocol Secure (HTTPS) is a safer version of HTTP, which is the communications protocol of the World Wide Web. An HTTPS session is encrypted using either the SSL protocol (Secure Socket Layer) or TLS protocol (Transport Layer Security) and …

Published: Jan 07, 2018 Tags: security Category: Engineering Cryptography is the core part of security, this blog introduces the basic concepts in cryptography and uses .NET as code example. Randomness System.Random and its problems System.Random is a pseudo random number generator A seed value is passed into the …

Published: Jan 4, 2018 Tags: docker Category: Engineering Docker is the world's leading software containerization platform. Docker/container technology becomes more and more popular these days. This blog introduces the basic concept of the above technology. What is docker In the old days, physical machine is the basic …

Published: Sep 04, 2017 Tags: cloud Category: Engineering This is a blog to explain what cloud is to dummies. Introduction Five main principles of cloud computing: Pooled resources: Available to any subscribing users Virtualization: High utilization of hardware assets Elasticity: Dynamic scale without CAPEX Automation: …

Published: Sep 9, 2017 Tags: web, frontend Category: Engineering Javascript is the fundumantal programming language for frontend development. This blog introduces the basic concept of Javascript language. Javascript Basic First, let's compare Javascript with a OOP programming language C#. C# Javascript Strongly-Typed …

Published: Sep 06, 2017 Tags: blockchain, security Category: Engineering Blockchain is the technology behind Bitcoin, this blog introduce what the Blockchain is. What is Blockchain Blockchain is a distributed ledger system which makes the transactions transparent and anonymous. By doing this, Blockchain brings a secure …

Published: Sep 01, 2017 Tags: booknotes, process, devops, continuousdelivery Category: Engineering DevOps and continuous delivery are two hot topics these days, which play more and more important role in software development especially for the SaaS (Software as a Service) solution. DevOps DevOps is a software …

Published: Aug 27, 2017 Tags: booknotes, architecture Category: Engineering Xunit Test Pattern is a fantastic book which shares the experience and good practice to write tests. Test Introduction Easy to run tests What makes tests easy to run? Four specific goals answer this question: They must be Fully Automated Tests …

Published: Aug 19, 2017 Tags: shell Category: Engineering Bash is a widely shell, which is the default shell in many operating systems, e.g. Unix, Linux, Mac OS. Bash can help you achieve a lot. To invest time to learn some useful commands in bash is a good idea. Table of Contents Directory commands Home directory …

Published: Jun 19, 2017 Tags: architecture, process Category: Engineering Domain Driven Design (DDD) is about trying to make your software a model of a real-world system or process. The philosophy of DDD is about placing our attention at the heart of the application, focusing on the complexity that is intrinsic to the …