News Aggregator

Create CloudWatch Custom Log Metric Alarm Notification Email Solution Using Terraform

Aggregated on: 2023-03-23 00:45:01

Amazon CloudWatch metric alarm allows customers to watch a metric value, or a math expression value for the metric, and trigger actions when the value breaks a certain threshold limit. These alarms can be used to trigger notifications delivered via Amazon SNS, email, SMS, etc. It has been a requirement for customers to include the application log messages in the alarm notification message, so it becomes easier for operational staff to identify the root cause for the alarm notification. In this article, I will demonstrate how to embed the application log messages in the notification email body when the CloudWatch alarm is activated. Prerequisites AWS account Terraform installed and ready to use. Product Versions HashiCorp Terraform: v0.13 or later Python: v3.9 or later Node.js: 14.x or later Target Architecture The following architecture diagram shows the components involved in this solution and the interaction between them.

Introduction to Container Orchestration

Aggregated on: 2023-03-23 00:00:01

Container orchestration is a critical aspect of modern software development, enabling organizations to deploy and manage large-scale containerized applications. In this article, we will discuss what container orchestration is, why it is important, and some of the popular container orchestration tools available today. What Is Container Orchestration? Container orchestration is the process of automating the deployment, scaling, and management of containerized applications. Containers are lightweight, portable software units that can run anywhere, making them ideal for modern, distributed applications. However, managing containerized applications can be complex, as they typically consist of multiple containers that must be deployed, configured, and managed as a single entity.

Implementing IP Geolocation in PHP Using the PECL Install

Aggregated on: 2023-03-22 21:15:01

Geolocation is an important feature for a website because it enables online businesses to provide targeted content to the prospective users based on their geographic location. By using geolocation data, the website owner can provide localized content, such as local news, weather, and events and have the content displayed in the native language. It also can help prevent fraud by allowing businesses to detect and block suspicious activities originating from certain geographic regions. It is an important tool for website owners and developers to enhance user experience and prevent fraudulence. Geolocation can be implemented in a variety of ways, such as at the web server layer, programming language layer, or through the use of an SDK. In our previous article, we demonstrated how to install geolocation into the Apache server. In this article, I will explore another approach by installing geolocation into the PHP language using the PECL install. For this demonstration, we will be using IP2Location, the same geolocation provider, so you can have an understanding of how geolocation works in different environments.

Navigating Progressive Feature Flag Debugging: Common Challenges and Effective Resolution

Aggregated on: 2023-03-22 21:15:01

Introduction Most modern software runs multiple versions of the application to conduct experiments (e.g., A/B testing) or to deploy new versions safely (e.g., canary, blue-green deployments). To support this, feature flags are commonly used to toggle different functionality at runtime. Developers may add feature flags to introduce a new feature and progressively roll it out in production. Alternatively, feature flags may introduce different business or behavior logic per some external variable for experimentation or data collection. While feature flags are a great tool for minimizing risk in validating new features and modifying behavior without disruptive deployments, it also adds complexity in debugging when the number of feature flags grows to be large. For large applications, it’s not uncommon to see multiple feature flags per service. In fact, it was reported that Facebook had over 60 different versions of the navigation bar at one time. Coupling that number with all the various microservices it communicates with, the combination of possible states grows exponentially large. So at scale, feature flags may be managed by a feature management platform like LaunchDarkly or AWS AppConfig.

Cachet 2.4: Code Execution via Laravel Configuration Injection

Aggregated on: 2023-03-22 20:15:01

Status pages are now an essential service offered by all Software-as-a-Service companies. To help their adoption, startups quickly conceived status pages as-a-service, and open-source self-hosted alternatives were made available. Cachet, also sometimes referred to as CachetHQ, is a broadly adopted status page system written in PHP and has many community forks such as fiveai/Cachet. Compromising Cachet instances is rewarding for attackers, as they store secrets for various services such as caches, databases, email servers, etc. This initial foothold in the infrastructure is helpful for them to pivot into the internal network of the affected company and to perform further attacks. In this article, I present the technical analysis of three security bugs my team and I discovered in Cachet 2.4. They can enable attackers to compromise the server.

How We Solved an OOM Issue in TiDB with GOMEMLIMIT

Aggregated on: 2023-03-22 20:15:01

A database Out Of Memory (OOM) error can be challenging to deal with. It can have a number of different causes, and without a thorough analysis, it can be difficult to determine the root cause of the error. Some typical causes of an OOM error in a database include insufficient memory, memory leaks, poorly optimized queries, and large result sets. To troubleshoot an OOM error in a database, it is important to monitor the database’s memory usage over time, profile the database to identify any potential bottlenecks or inefficiencies and optimize queries and indexes as needed.

File Uploads for the Web (2): Upload Files With JavaScript

Aggregated on: 2023-03-22 18:45:01

Welcome back to this series about uploading files to the web. If you missed the first post, I recommend you check it out because it’s all about uploading files via HTML. The full series will look like this: Upload files With HTML Upload files With JavaScript Receiving File Uploads With Node.js (Nuxt.js) Optimizing Storage Costs With Object Storage Optimizing Delivery With a CDN Securing File Uploads With Malware Scans In this article, we’ll do the same thing using JavaScript.

The Importance of Monitoring AWS Resource Utilization for Cost Optimization

Aggregated on: 2023-03-22 18:15:01

As more and more companies move to the cloud, it’s becoming essential to keep track of their resource usage to ensure cost-effectiveness. Amazon Web Services (AWS) is a leading platform among cloud providers, but its extensive range of services can pose a challenge when monitoring resource consumption efficiently. This article delves into the significance of tracking AWS resource utilization for cost optimization and offers practical tips on accomplishing this. What Is AWS Resource Utilization? As an AWS professional, it’s essential to understand the concept of AWS resource utilization. Essentially, it refers to the computing resources that your website or application consumes on the AWS platform. These resources may include CPU, memory, disk I/O, and network usage, among others. Fortunately, AWS offers several tools you can utilize to monitor your resource utilization. These tools include Amazon CloudWatch, AWS Trusted Advisor, and AWS Cost Explorer. By leveraging these services, you can keep track of your resource consumption and optimize your AWS usage for maximum efficiency.

How to Run Playwright Test Cases in CI/CD Pipeline Bitbucket

Aggregated on: 2023-03-22 17:30:01

Playwright is an open-source Node.js library started by Microsoft for automating browsers based on Chromium, Firefox, and WebKit through a single API. The primary goal of Playwright is to improve automated UI testing. In addition, playwright is made to enable cross-browser web automation. Playwright test allows to:

CRUD REST API With Jakarta Core Profile Running on Java SE

Aggregated on: 2023-03-22 17:00:01

In this blog post, I want to explore running a Jakarta EE Core profile application on Java SE without an application server. Java/Jakarta Experts — Markus Karg, Rudy De Busscher, and Francesco Marchioni have already blogged and demonstrated how to achieve this on their blog respectively at Coding Microservice From Scratch, Run your Jakarta Application without Runtime and Getting started with Jakarta RESTful Services. I wanted to take this further and explore the possibilities/ways to create a JAX-RS/Jakarta CRUD REST API with the Jakarta Core profile running on Java SE. The REST service API built in this tutorial is for CRUD Operations (Create, Read, Update, Delete), which corresponds to the standard HTTP methods (POST, GET, PUT, DELETE) and, in this post, used for managing employee data model in the application.

Ten Easy Steps Toward a Certified Data Scientist Career

Aggregated on: 2023-03-22 16:45:01

Data scientists are the new-age genie, and data is the very lamp that ushers business-centric insights. No doubt, tech advancements have seeped into every aspect of our lives. This calls for an umpteenth times revolution in the way we envision our data and retrieve meaningful insights. What Is Data Science? The science or the sheer skillset that a gazillion of recruiters around the world is eyeing, data science is the mastery every industry needs today. Data science has become the lifeblood of industries far and wide. Healthcare, eCommerce, Artificial Intelligence, and many other industries have leveraged high benefits out of the data rigmarole.

Programming Solutions for Graph and Data Structure Problems With Implementation Examples (Word Dictionary)

Aggregated on: 2023-03-22 16:45:01

This article provides programming solutions and implementation examples for various graph and data structure problems. Graphs and data structures are fundamental concepts in computer science, and understanding them is crucial for developing efficient algorithms for a wide range of applications. This article covers several common graph problems, including finding a path between two nodes in a directed graph and designing a data structure that supports adding new words and searching for matching words. For each problem, we provide a detailed explanation of the solution approach and then provide an implementation in Kotlin programming language.

Building a Video Calling App Using WPF and Dyte

Aggregated on: 2023-03-22 16:15:01

Windows Presentation Foundation, also popularly known as WPF, is a popular UI framework for building Windows applications. Since its launch in 2006, it has gained popularity, and many apps running on Windows these days benefit from its features. Due to easy interoperability with Win32 APIs and backward compatibility, WPF is still a popular choice. Building a WPF video calling app with Dyte SDK will be a two-step process. To use the same features available on Dyte SDK, we will use the Web Components and render those in WPF applications. To achieve this, in the first step, we will create a Web App with Dyte SDK, and in the second step, we will use Microsoft Edge WebView2 to integrate the web app and render Dyte video calls.

Best Navicat Alternative for Windows

Aggregated on: 2023-03-22 15:45:01

If you're familiar with database development and administration, you've heard of Navicat. It's a popular software product with a large user community, offering all the essentials for managing databases. However, if you're searching for a more advanced alternative specifically for SQL Server, you've come to the right place. One such alternative is dbForge Studio for SQL Server. While it shares many features with Navicat, it offers a range of additional tools that could prove invaluable in your day-to-day work. These include:

7 Ways of Containerizing Your Node.js Application

Aggregated on: 2023-03-22 15:45:01

Node.js has been a favorite among serious programmers for the last five years running. The JavaScript Runtime Environment for Maximum Throughput is a free and open-source program that aims to improve the performance of JavaScript across several platforms. Because of its event-driven, non-blocking I/O approach, Node.js is small in size and quick in processing requests, making it an excellent choice for data-intensive, real-time, and distributed applications.

Best CI/CD Tools for DevOps: A Review of the Top 10

Aggregated on: 2023-03-22 14:15:01

Most businesses are transitioning towards the Agile culture and DevOps methodologies to ensure product quality and accelerate delivery speed. In the context of DevOps, an automated and continuous delivery cycle is the backbone that facilitates reliability and fast delivery. Essentially, DevOps focuses on integrating operations with development teams, CI/CD (Continuous Integration and Continuous Delivery), and automation processes and tasks. As of 2020, up to 62% of teams at an advanced stage of their DevOps evolution process were already implementing CI/CD workflows to meet their business demands. This is partly a result of organizations adopting more self-service offerings as their DevOps teams evolve. However, in some instances, choosing the right CI/CD pipeline tool can be quite challenging. This article explores the best CI/CD tools for DevOps and their core features to help you make the right choice.

Microservices Testing

Aggregated on: 2023-03-22 13:15:01

Microservices architecture is an increasingly popular approach to building complex, distributed systems. In this architecture, a large application is divided into smaller, independent services that communicate with each other over the network. Microservices testing is a crucial step in ensuring that these services work seamlessly together. This article will discuss the importance of microservices testing, its challenges, and best practices. Importance of Microservices Testing Testing microservices is critical to ensuring that the system works as intended. Unlike traditional monolithic applications, microservices are composed of small, independent services that communicate with each other over a network. As a result, microservices testing is more complex and challenging than testing traditional applications. Nevertheless, testing is crucial to detect issues and bugs in the system, improve performance, and ensure that the microservices work correctly and efficiently.

A Gentle Introduction to Kubernetes

Aggregated on: 2023-03-22 12:30:01

Kubernetes simplifies deploying, scaling, and managing distributed components and services across various infrastructures. It offers powerful features such as self-healing, service discovery, automated rollouts, and rollbacks, allowing users to manage containerized applications easily. In this guide, we will delve into the basic concepts of Kubernetes. Then, we will discuss the system's architecture, the problems it solves, and the model employed to manage containerized deployments and scaling. What Is Kubernetes? Kubernetes (sometimes called K8s) is an open-source container-orchestration system that simplifies the deployment, scaling, and management of containerized applications. It provides a unified platform for deploying and managing distributed applications. It is designed to be highly scalable, fault-tolerant, and cloud-agnostic, running on multiple cloud platforms and on-premise environments.

How To Choose the Right Streaming Database

Aggregated on: 2023-03-22 02:45:01

In today's world of real-time data processing and analytics, streaming databases have become an essential tool for businesses that want to stay ahead of the game. These databases are specifically designed to handle data that is generated continuously and at high volumes, making them perfect for use cases such as the Internet of Things (IoT), financial trading, and social media analytics. However, with so many options available in the market, choosing the right streaming database can be a daunting task. This post helps you understand what SQL streaming is, the streaming database, when and why to use it, and discusses some key factors that you should consider when choosing the right streaming database for your business.

Retype a Column in YugabyteDB (And PostgreSQL)

Aggregated on: 2023-03-22 02:15:01

You inherit a data model that does not use the best datatypes, like using int instead of bigint for a value that can be larger? Don't wait until the tables grow larger. Here is an example to show how to retype it efficiently. Usually, those operations are done two times: The DDL that may block the application must be short, with metadata changes only The DML that modifies data can take longer as long as they are online without impact on the application availability During the intermediate phase, you have to maintain both versions of the columns. Because YugabyteDB is PostgreSQL compatible with triggers, you may even do that without any change to the application code.

How To Automate Android Apps Using Appium

Aggregated on: 2023-03-22 01:45:01

In this age where new technologies are coming up rapidly, it’s very important to keep up with speed and ensure the highest application quality is delivered to the customers. If we see the user base of different operating systems, we can see that Android is currently the market leader worldwide. Let’s see this market trend: Many companies want a mobile version of their web applications or even directly create mobile applications for their customers. Therefore, it must be tested thoroughly to ensure customers get quality applications.

Solving the Kubernetes Security Puzzle

Aggregated on: 2023-03-22 01:15:01

The benefits of adopting cloud-native practices have been talked about by industry professionals ad nauseam, with everyone extolling its ability to lower costs, easily scale, and fuel innovation like never before. Easier said than done.

How To Build a Spring Boot GraalVM Image

Aggregated on: 2023-03-22 00:45:01

In this article, you will learn how to build a GraalVM image for your Spring Boot application. Following these practical steps, you will be able to apply them to your own Spring Boot application. Enjoy! Introduction Java is a great programming language and is platform independent. Write once, run anywhere! But this comes at a cost. Java is portable because Java compiles your code to bytecode. Bytecode is computer object code, which an interpreter, (read: Virtual Machine), can interpret and convert to machine code. When you start your Java application, the Virtual Machine will convert the bytecode into bytecode specific for the platform, called native machine code. This is done by the just-in-time compiler (JIT). As you will understand, this conversion takes some time during startup.

How Does Augmented Reality (AR) Differ From Virtual Reality (VR)?

Aggregated on: 2023-03-22 00:45:01

In the current fast-paced environment, both AR and VR are becoming more and more useful. Both technologies have a lot in common with each other, but they are also very different. So, in this article, we'll explain the difference between augmented reality and virtual reality. What Is AR vs. VR? AR is a digitally enhanced version of reality in which users can communicate with graphical interfaces that look like a mobile phone or an app. Augmented reality is the technology that connects digital data like text, images, and 3D Models in a real-world atmosphere.

Master Spring Boot 3 With GraalVM Native Image

Aggregated on: 2023-03-21 23:45:01

Spring Boot 3 is riding the wave in the Java world: a few months have passed since the release, and the community has already started migrating to the new version. The usage of parent pom 3.0.2 is approaching 500 on Maven Central! An exciting new feature of Spring Boot is the baked-in support from GraalVM Native Image. We have been waiting for this moment for years. The time to migrate our projects to Native Image is now!

DevOps for Developers: Continuous Integration, GitHub Actions, and Sonar Cloud

Aggregated on: 2023-03-21 23:30:01

I first ran into the concept of Continuous Integration (CI) when the Mozilla project launched. It included a rudimentary build server as part of the process and this was revolutionary at the time. I was maintaining a C++ project that took two hours to build and link. We rarely went through a clean build, which created compounding problems as bad code was committed into the project. A lot has changed since those old days. CI products are all over the place and, as Java developers, we enjoy a richness of capabilities like never before. But I’m getting ahead of myself. Let’s start with the basics.

How Elasticsearch Works

Aggregated on: 2023-03-21 23:30:01

Elasticsearch is a distributed, full-text search and analytics engine that allows you to store, search, and analyze large volumes of data quickly and in near real-time. In this Elasticsearch tutorial, you’ll get to know what is Elasticsearch, how Elasticsearch works, and how you can configure, install, and run it. Also, you’ll understand its benefits and what is Elasticseach used for. So, let’s begin. What Is ElasticSearch? Elasticsearch is an open-source search and analytics engine that allows you to store, search, and analyze large amounts of data in real-time. It is based on the Lucene search engine library and is designed to provide distributed and scalable search capabilities, making it ideal for use in a variety of applications such as e-commerce, log analysis, and business intelligence.

Create a CLI Chatbot With the ChatGPT API and Node.js

Aggregated on: 2023-03-21 22:15:01

ChatGPT has taken the world by storm, and this week, OpenAI released the ChatGPT API. I’ve spent some time playing with ChatGPT in the browser, but the best way to really get on board with these new capabilities is to try building something with it. With the API available, now is that time. This was inspired by Greg Baugues’s implementation of a chatbot command line interface (CLI) in 16 lines of Python. I thought I’d start by trying to build the same chatbot but using JavaScript.

Mocha JavaScript Tutorial With Examples for Selenium Testing

Aggregated on: 2023-03-21 20:15:01

As per StackOverflow insights, JavaScript is the most popular programming language. As the power of web and mobile is increasing day by day, JavaScript and JavaScript frameworks are becoming more popular. It would not be surprising to hear that JavaScript has become a preference for test automation as well. Over the past few years, a lot of development has happened in the open-source JavaScript based test automation framework development and now we have multiple JavaScript testing frameworks that are robust enough to be used professionally. There are scalable frameworks that can be used by web developers and testers to automate even unit test cases and create complete end-to-end automation test suites. Mocha is one JavaScript testing framework that has been well renowned since 2016, as per StateofJS. With that said, when we talk about JavaScript automation testing, we can’t afford not to loop Selenium into the discussion. So I thought coming up with a step-by-step Mocha testing tutorial on the framework will be beneficial for you to kickstart your JavaScript automation testing with Mocha and Selenium. We will also be looking into how you can run it on the LambdaTest automation testing platform to get a better browser coverage and faster execution times. By the end of this Mocha testing tutorial, you will have a clear understanding of the setup, installation, and execution of your first automation script with Mocha for JavaScript testing.

5 Best Python Testing Frameworks

Aggregated on: 2023-03-21 18:30:01

After being voted as the best programming language in the year 2018, Python still continues rising up the charts and currently ranks as the third best programming language just after Java and C, as per the index published by Tiobe. With the increasing use of this language, the popularity of test automation frameworks based on Python is increasing as well. Obviously, developers and testers will get a little bit confused when it comes to choosing the best framework for their project. While choosing one, you should judge a lot of things, the script quality of the framework, test case simplicity and the technique to run the modules and find out their weaknesses. This is my attempt to help you compare the top five Python frameworks for test automation in 2019, and their advantages and disadvantages over the other frameworks. So you could choose the ideal Python framework for test automation according to your needs. Robot Framework Used mostly for development that is acceptance test-driven as well as for acceptance testing, the Robot Framework is one of the top Python test frameworks. Although it is developed using Python, it can also run on IronPython, which is .net-based and on Java-based Jython. Robot as a Python framework is compatible across all platforms—Windows, MacOS, or Linux.

Building Microservice in Golang

Aggregated on: 2023-03-21 18:00:01

Microservice architecture is a popular software design pattern that involves dividing a large application into smaller, independent services that can be developed, deployed, and scaled autonomously. Each microservice is responsible for a specific function within the larger application and communicates with other services via well-defined interfaces, often leveraging lightweight communication protocols such as REST or message queues. Advantages of Microservice Architecture Microservice architecture provides several advantages. Here are some benefits of using microservices:

Experts on How to Make Product Development More Predictable and Cost-Efficient

Aggregated on: 2023-03-21 17:00:01

There is no chance you can avoid all the pitfalls and landmines of the product development process. You will get stuck, you will make mistakes, and you will lose time, money, and (more often than you think!) — hope. There is no silver bullet for it. However, there are tried and true, ground-to-earth ways to mitigate this chaos, decrease the entropy of product design and development, and increase your chances of success. We could address it from our product development perspective only but decided to make this guide truly multifaceted. Thus, offered eight experts to answer four pressing questions about product development. For your convenience, each topic is finalized with summary points and extra tips from the QArea team.

useState() vs. useRef(): Understand the Technical Difference

Aggregated on: 2023-03-21 15:15:01

React is a popular JavaScript library that allows developers to create reusable and modular user interfaces. useState() and useRef() are two of the most commonly used hooks in React, but they serve different purposes. In this article, we will discuss the differences between useState() and useRef() and when to use each of them.

Data Science vs. Software Engineering: Understanding the Fundamental Differences

Aggregated on: 2023-03-21 14:45:01

In the contemporary era of digitization, information reigns supreme and is an indispensable asset for almost every business venture. To capitalize on the potential of data, data science, and software engineering have emerged as key players in the technology industry. While these two fields are often used interchangeably, they are, in fact, distinct and necessitate different skill sets and expertise. This discourse will explore the intrinsic dissimilarities between data science and software engineering and their respective roles, responsibilities, and methodologies. Data science is a multifaceted field focusing on mining, interpreting, and manipulating vast and complex data sets to draw meaningful insights and create predictive models. It encompasses various sub-disciplines, such as statistics, mathematics, machine learning, and programming.

What Is the Temporal Dead Zone In JavaScript?

Aggregated on: 2023-03-21 13:45:00

In JavaScript, the Temporal Dead Zone (TDZ) is a behavior that occurs when trying to access a variable that has been declared but not yet initialized. This behavior can cause unexpected errors in your code if you’re not aware of it, so it’s important to understand how it works. In this blog post, we’ll explore what the Temporal Dead Zone is, why it happens, and how to avoid common pitfalls related to it.

Introduction to Spring Cloud Kubernetes

Aggregated on: 2023-03-21 13:15:00

Spring Cloud Kubernetes is a set of open-source libraries that enable Spring Boot applications to be deployed and managed on Kubernetes. Kubernetes is an open-source container orchestration platform that is widely used for deploying, scaling, and managing containerized applications. Spring Cloud Kubernetes provides a seamless integration between Spring Boot and Kubernetes, enabling developers to build cloud-native applications that can run efficiently in a Kubernetes environment. In this article, we will explore the various features of Spring Cloud Kubernetes, its benefits, and how it works.

Comparing Map.of() and New HashMap() in Java

Aggregated on: 2023-03-21 11:30:00

Java is a popular programming language used for developing a wide range of applications, including web, mobile, and desktop applications. It provides many useful data structures for developers to use in their programs, one of which is the Map interface. The Map interface is used to store data in key-value pairs, making it an essential data structure for many applications. In this article, we will discuss the use of Map.of() and new HashMap<>() in Java, the difference between them, and the benefits of using Map.of().

OpenVPN With Radius and Multi-Factor Authentication

Aggregated on: 2023-03-21 03:45:00

Setting up a VPN server to allow remote connections can be challenging if you set this up for the first time. In this post, I will guide you through the steps to set up your own VPN Server and connect to it using a VPN Client. Additionally, I will also show how to set up a free Radius server and a plugin to implement multi-factor authentication for additional security.

Integrate AWS Secrets Manager in Spring Boot Application

Aggregated on: 2023-03-21 02:45:00

Introduction In this article, we will understand the integration of AWS Secrets Manager in the Spring Boot Application. This service will load the secrets at runtime and make sure to keep the sensitive information away from the code. Context When we work on a Spring Boot Application, we have an application.properties file based on the different profiles (environment). In these files, we keep all the information related to the configuration of the Spring Boot application. The file contains database credentials and other sensitive information like any credentials or ftp server's endpoint along with credentials. This sensitive information is not recommended to be put directly into the code for security concerns. To avoid such vulnerabilities in our application, we have to take several measures in order to ensure the security of sensitive information.

Master C# Arrays: The Basics

Aggregated on: 2023-03-21 02:45:00

C# Arrays tutorial has related videos. Watch this C# arrays tutorial with both related videos and written material for a step-by-step explanation with code examples. Videos will reduce your learning curve and deepen your understanding where you’re uncertain. What Is an Array? An array is a data structure that stores multiple values of the same type in a single variable. You access each individual value through an integer index with an array name. Arrays can be of different dimensions like single-dimension, multi-dimension, or jagged array. The simplest of all is the single dimension, so you’ll start learning how to declare, initialize, and use a single-dimensional array.

19 Most Common OpenSSL Commands for 2023

Aggregated on: 2023-03-21 01:30:00

What Is OpenSSL Command? OpenSSL is an open-source-based implementation of the SSL protocol, with versions available for Windows, Linux, and Mac OS X. It is a highly versatile tool used to create CSRs (Certificate Signing Requests) and Private Keys as well as compare an MD5 hash of different certificates or private keys; verify installed certificates on any website; and convert certificates into other formats. The most common OpenSSL commands are generating Certificate Signing Requests, verifying that a certificate is installed correctly on a website, comparing the MD5 hash of a certificate or private key with other versions, and converting certificates from one format to another. The Most Common OpenSSL Commands In this blog, we have mentioned some common OpenSSL commands used for different SSL management purposes. OpenSSL provides a wide range of options and parameters for each command, allowing users to manage their SSL infrastructure and fix their queries in no time.

Monitoring Linux OS Using Open Source Real-Time Monitoring HertzBeat

Aggregated on: 2023-03-21 01:00:00

Introduction to HertzBeat HertzBeat is an open source, easy-to-use and friendly real-time monitoring system that does not require Agent and has powerful custom monitoring capabilities. Integrate monitoring-alarm-notification, support monitoring of application services, databases, operating systems, middleware, cloud-native, etc., threshold alarms, and alarm notifications (email WeChat Dingding Feishu SMS Slack Discord Telegram). It configurable protocol specifications such as Http, Jmx, Ssh, Snmp, Jdbc, etc. You only need to configure YML to use these protocols to customize and collect any indicators you want to collect. Do you believe that you can immediately adapt to a new monitoring type, such as K8s or Docker, just by configuring YML? HertzBeat's powerful customization, multi-type support, easy expansion, and low coupling hope to help developers and small and medium teams quickly build their own monitoring systems. Github: https://github.com/dromara/hertzbeat

Tracking Software Architecture Decisions

Aggregated on: 2023-03-21 00:15:00

Maybe this sounds familiar to you: joining a new software engineering company or moving from your current team to a different team and being asked to keep evolving an existing product. You realized that this solution is using an uncommon architectural pattern in your organization. Let’s say it is applying event sourcing for persisting the state of the domain aggregates. If you like event sourcing; but do not like it for the specific nature of the product, most likely, it wouldn’t have been your first choice. As a software architect, you start to find the rationale behind that solution, find documentation with no success, and ask the software engineers that do not have the answer you were looking for. This situation might have a relevant negative impact. Software architectural decisions are key and drive the overall design of the solution, impacting maintainability, performance, security, and many other “-alities.” There is no perfect software architecture decision designing architectures is all about trade-offs, understanding their implications, sharing their impacts with the stakeholders, and having mitigations to live with them.

Old School or Still Cool? Top Reasons To Choose ETL Over ELT

Aggregated on: 2023-03-20 21:45:00

Cases Where ETL Still Bosses Over ELT In the past few years, ELT has become very popular, mostly because more people are using big data and cloud-based solutions. ELT does have some benefits, but it may not be the best choice for all uses. In some situations, ETL may be a better and more efficient choice. In this article, we’ll look at the situations where ETL is still better than ELT. We will talk about situations where ETL is the best choice because of the complexity of the data transformations, the size of the data, and the need for data quality and consistency. By the end of this article, you’ll have a better idea of when ETL is better than ELT for integrating data.

How To Select Multiple Checkboxes in Selenium WebDriver Using Java

Aggregated on: 2023-03-20 21:15:00

Have you ever wondered how frustrating it would be if you had to log in each time you wanted to view your Facebook profile? Or in a multiple-choice question where you’d like to mark many options but can’t? Or do you have to enter your card information each time you make a payment since you can’t save it? These are only a few of the numerous instances on web pages where quick functionality might be useful. Stay logged in for a while, save card details, and much more with a simple click. Basically, it’s a technique to turn things on and off while allowing for multi-selection.

Intro to Graph and Native Graph Databases

Aggregated on: 2023-03-20 20:30:00

Legacy databases — or relational databases, aka RDBMS — were built for well-mapped, stable, and predictable processes like finance and accounting. These databases use rigid rows, columns, and tables that don’t require frequent modifications, but when the database model does need to change, it’s a big and expensive undertaking. Today, when building software applications, business and user requirements change often. Yet, most legacy database software fights against these changes rather than evolving with them.

Unity and the Future of Game Development

Aggregated on: 2023-03-20 20:30:00

Since its launch in 2005, Unity has become one of the most widely used game engines in the world, powering games on a wide range of platforms from consoles and PCs to mobile devices and web browsers. The engine's user-friendly interface, robust feature set, and flexible licensing options have made it a go-to tool for developers of all sizes, from indie studios to large AAA game companies. But Unity's impact on the game development industry goes beyond just providing a powerful tool for making games. The engine has transformed the way developers approach game development, offering a more streamlined, efficient, and collaborative workflow. With Unity, developers can create games faster, iterate more quickly, and focus more on the creative aspects of game design rather than the technical details.

Specification by Example Is Not a Test Framework

Aggregated on: 2023-03-20 19:45:00

In this article, I will look at Specification by Example (SBE) as explained in Gojko Adzic’s book of the same name. It’s a collaborative effort between developers and non-developers to arrive at textual specifications that are coupled to automatic tests. You may also have heard of it as behaviour-driven development or executable specifications. These are not synonymous concepts, but they do overlap. It's a common experience in any large, complex project. Crucial features do not behave as intended. Something was lost in the translation between intention and implementation, i.e., business and development. Inevitably we find that we haven’t built quite the right thing. Why wasn’t this caught during testing? Obviously, we’re not testing enough, or the wrong things. Can we make our tests more insightful?

HTTP vs Messaging for Microservices Communications

Aggregated on: 2023-03-20 19:45:00

Microservices architecture has gained popularity recently as a technique for creating sophisticated and scalable software systems. Microservices are scalable, independently deployable services that talk to one another across a network. Making it easier for these services to communicate with one another is one of the major problems with a microservices design. HTTP and messaging are two popular methods for microservices communication.

Strategies for Kubernetes Cluster Administrators: Understanding Pod Scheduling

Aggregated on: 2023-03-20 19:45:00

Kubernetes has revolutionized container orchestration, allowing developers to deploy and manage applications at scale. However, as the complexity of a Kubernetes cluster grows, managing resources such as CPU and memory becomes more challenging. Efficient pod scheduling is critical to ensure optimal resource utilization and enable a stable and responsive environment for applications to run in. As a Kubernetes cluster administrator, understanding the nuances of pod scheduling is essential to maximize your cluster’s performance. In this guide, we will explore the strategies for managing pod scheduling in Kubernetes, from the basics to more advanced techniques. We will delve into the intricacies of pod scheduling, including how to optimize resource allocation, how to balance workloads, and how to manage node selectors and affinity rules.