In certificate pinning, the client maintains a list of valid certificate fingerprints (or hashes) that are compared against the server’s certificate during the TLS handshake to ensure its authenticity. Below is a simple example...
Introduction In modern secure systems, digital signatures are critical for ensuring data authenticity and integrity. This guide will walk you through the steps to: 1. Generating the Private and Public Keys To begin, you...
Logging is a crucial part of any Java application, providing valuable insights into the behavior and performance of the system. SLF4J (Simple Logging Facade for Java) is a popular logging facade that allows developers...
In modern cloud-native application development, it’s essential to understand the environment where your application is running, especially when working with container orchestration platforms like Kubernetes. Platforms such as EKS (Amazon Elastic Kubernetes Service), GKE...
High-Level System Design of a URL Shortener 1. Overview A URL shortener is a system that takes a long URL and generates a shorter, unique alias. When users visit the short URL, they are...
Amazon Web Services (AWS) Fargate is a serverless compute engine that allows developers to run containers without managing the underlying infrastructure. This makes it a popular choice for deploying containerized applications. However, there are...
The InetAddress.getLocalHost() method can be slow in certain environments because it performs a reverse DNS lookup to determine the hostname of the local machine. Here’s why this might be happening and potential solutions: Reasons...
Here’s a simple example of how Merkle trees work for data replication in a scenario where the root hash of the two nodes differs due to missing or changed keys in one of the...
Lets break down the concepts of Gossip protocol for node failure detection with a simple step-by-step example and provide a visual overview of how the information propagates. Here’s how a basic failure detection system...
In an era where containerization has become a standard in software deployment, it’s increasingly important for applications to be able to identify when they’re running within a containerized environment. Whether you’re monitoring resource usage,...