Zum Inhalt springen
JR IT Services

JR IT Services

Professionelle Beratung hinsichtlich Architektur, Design und Entwicklung im Microsoft .NET Umfeld

  • Über JR IT Services
  • Projekte
  • Unser Team
  • Impressum
  • Datenschutzerklärung
  • JR IT Services Blog

Hyprland: The Next-Gen Wayland Compositor

1. Oktober 20241. Oktober 2024
Johannes Rest
Allgemein

Hyprland is an emerging Wayland compositor that has garnered significant attention in the Linux desktop ecosystem. Designed for advanced users and those seeking maximum customization, Hyprland is a modern, feature-packed compositor built with dynamic tiling and window management in mind.

Weiterlesen

Calculating Sensitivities for Financial Products Using C# and .NET 8

3. September 202429. Oktober 2024
Johannes Rest
Allgemein

In the world of financial risk management, understanding how the value of financial instruments changes in response to various factors is crucial. Sensitivities, often referred to as „Greeks,“ are metrics that measure these changes. In this blog post, we’ll explore

Weiterlesen

Understanding Value at Risk (VaR) in the Financial Sector

3. September 202429. Oktober 2024
Johannes Rest
Allgemein

In the financial sector, Value at Risk (VaR) is a widely used risk management tool that measures the potential risk of a portfolio. It indicates how much money could be lost with a certain probability over a specified period. VaR

Weiterlesen

Calculating Portfolio Risk to Fulfill Basel I Requirements Using C# and .NET 8

3. September 202430. Oktober 2024
Johannes Rest
Allgemein

In the financial world, managing and mitigating risk is crucial for the stability of financial institutions. Basel I, introduced by the Basel Committee on Banking Supervision, provides a framework for banks to calculate and maintain adequate capital to cover their

Weiterlesen

Calculating Portfolio Risk to Fulfill Basel II Requirements Using C# and .NET 8

3. September 2024
Johannes Rest
Technischer Artikel

In the financial world, managing and mitigating risk is crucial for the stability of financial institutions. Basel II, introduced by the Basel Committee on Banking Supervision, builds upon Basel I by incorporating a more comprehensive approach to risk management. It

Weiterlesen

Calculating Portfolio Risk to Fulfill Basel III Requirements Using C# and .NET 8

3. September 2024
Johannes Rest
Allgemein

In the evolving landscape of financial regulation, Basel III provides an enhanced framework to further strengthen risk management and ensure the stability of financial institutions. Building on Basel I and Basel II, Basel III introduces stricter capital requirements, leverage ratios,

Weiterlesen

Downloading the Bing Image of the Day for Your Wallpaper in Linux, Windows, and macOS

3. September 20243. September 2024
Johannes Rest
Allgemein

Bing’s “Image of the Day” often features stunning and inspiring images from around the world, making it a perfect choice for your desktop wallpaper. In this guide, we’ll walk you through a simple Bash script that automatically downloads the Bing

Weiterlesen

Managing Timeshift Snapshots on Arch Linux: A Comprehensive Purge Strategy

7. August 2024
Johannes Rest
Technischer Artikel

In the world of data management, ensuring that you have adequate backups while maintaining efficient use of storage is crucial. For users of Timeshift on Arch Linux, this balance can become challenging as snapshot data grows over time. In this

Weiterlesen

Combining Images with a C Program using ImageMagick: Two and Four Image Use Cases

7. August 2024
Johannes Rest
Technischer Artikel

In our previous blog post, we explored how to combine images with spacers using ImageMagick commands. Now, we will take this a step further and create a C program that automates this process, taking image filenames as command-line parameters. This

Weiterlesen

Combining Multiple Images with ImageMagick and C: Handling Variable Numbers and Pagination

7. August 2024
Johannes Rest
Allgemein, Technischer Artikel

In our previous blog post, we demonstrated how to combine images with spacers using a C program and ImageMagick. Now, we’ll extend this program to handle a variable number of images, arranging them on pages with a specified maximum number

Weiterlesen

Combining Images with ImageMagick: Adding Spacers and Arranging Multiple Images

7. August 2024
Johannes Rest
Allgemein, Technischer Artikel

When working with images, there are many scenarios where you might want to place multiple images side by side on a single page with spaces in between. Whether you’re creating a photo collage or preparing images for printing, ImageMagick is

Weiterlesen

The Importance of Backing Up QEMU/KVM Virtual Machines on Arch Linux

6. August 2024
Johannes Rest
Allgemein

In today’s digital age, ensuring the integrity and availability of your data is paramount. Virtual machines (VMs) have become a cornerstone in many IT environments due to their flexibility and efficiency. However, like any other critical system, they need to

Weiterlesen

Building a RESTful Airline API in GNU C on Arch Linux

25. Juli 20242. August 2024
Johannes Rest
Technischer Artikel

Creating a RESTful API in C is a bit unconventional compared to modern languages like Python or JavaScript, but it’s a great way to dive deep into the mechanics of web servers and APIs. This post will guide you through

Weiterlesen

How to Create and Manage a Network Bridge br0 on Arch Linux Using enp6s0

23. Juli 202423. Juli 2024
Johannes Rest
Technischer Artikel

In this post, we’ll go through the steps to create a network bridge br0 on an Arch Linux system, linking it to the physical Ethernet interface enp6s0. We will also set up a systemd service to handle the creation and

Weiterlesen

A Day in the Life of a C# Developer: Navigating the Git Workflow

15. Juli 2024
Johannes Rest
Allgemein

As a C# developer, one of the most crucial tools in your arsenal is the version control system, Git. This powerful system allows developers to manage and track changes in their codebase efficiently. In this blog post, we’ll walk through

Weiterlesen

Exploring the Camunda Workflow Engine: Handling Requests, Processing Workflows, and Managing Long-Running Tasks

15. Juli 20242. August 2024
Johannes Rest
Allgemein

The Camunda Workflow Engine is a robust and flexible platform designed to automate and manage business processes. Whether it’s handling user input, running data-intensive tasks, or managing long-running workflows, Camunda provides a comprehensive set of features to streamline workflow execution

Weiterlesen

Restoring a Linux systemd-boot Loader on a Dual Boot Machine After a Windows 11 Update

15. Juli 202415. Juli 2024
Johannes Rest
Allgemein

Windows updates can sometimes overwrite the existing bootloader, leaving you without a way to boot into your Linux installation. If you have a dual-boot setup with Arch Linux and Windows 11, and a Windows update has removed your Linux bootloader,

Weiterlesen

Integrating C# Logic with Camunda Workflows: A Comprehensive Guide

15. Juli 202415. Juli 2024
Johannes Rest
Technischer Artikel

Introduction Camunda is a powerful, open-source workflow and decision automation platform designed to orchestrate processes. While it natively supports Java for scripting and execution, there are scenarios where integrating with other languages like C# becomes essential, especially in environments heavily

Weiterlesen

Enhancing .NET C# Development with NDepend

13. Juli 202429. Juli 2024
Johannes Rest
Technischer Artikel

Introduction In the dynamic world of .NET C# development, maintaining high code quality is essential. Enter NDepend, a powerful static analysis tool designed to help developers ensure their code is robust, maintainable, and efficient. This blog post will explore how

Weiterlesen

How to Write a Camunda Worker in C# and Use It in a Camunda Workflow

13. Juli 202413. Juli 2024
Johannes Rest
Technischer Artikel

Introduction Camunda is a powerful workflow and decision automation platform. While it natively supports Java, many organizations have significant investments in .NET technologies. This guide will show you how to write a Camunda worker in C# and integrate it with

Weiterlesen

Exploring Data Warehouse Technologies: Storage and Querying in Modern Relational Databases

9. Juli 20249. Juli 2024
Johannes Rest
Technischer Artikel

In the realm of data management, data warehouses have become indispensable for organizations looking to extract valuable insights from their vast repositories of information. This blog post delves into the intricacies of data warehouse technologies, focusing on how data is

Weiterlesen

Data Storage and Querying in Data Warehouse Cubes

9. Juli 20249. Juli 2024
Johannes Rest
Technischer Artikel

Data warehouses are designed to facilitate complex queries and analysis. One of the key components of a data warehouse is the data cube, which allows data to be modeled and viewed in multiple dimensions. This is particularly useful for OLAP

Weiterlesen

Writing a Simple BPMN Workflow in Camunda and Accessing It from Java Using Spring Boot

9. Juli 20242. August 2024
Johannes Rest
Technischer Artikel

Introduction Business Process Model and Notation (BPMN) is a graphical representation for specifying business processes in a business process model. Camunda is a powerful open-source platform for workflow and business process automation. In this blog post, we will guide you

Weiterlesen

ETL Workflow with Java and Camunda: A Detailed Guide

9. Juli 20245. August 2024
Johannes Rest
Allgemein

Introduction ETL (Extract, Transform, Load) processes are fundamental in data management, enabling the integration and manipulation of data from various sources to provide meaningful insights. In this blog post, we will explore how to implement an ETL process for airline

Weiterlesen

Implementing an ETL Process for Airline Data using Java and Camunda Workflow Suite

12. Juni 2024
Johannes Rest
Technischer Artikel

In the modern airline industry, data management is critical for operational efficiency, customer satisfaction, and regulatory compliance. Extract, Transform, Load (ETL) processes are essential for consolidating data from various sources, transforming it into actionable insights, and loading it into databases

Weiterlesen

Building a Simple BPM Workflow with C# and Camunda

11. Juni 202412. Juni 2024
Johannes Rest
Technischer Artikel

In today’s dynamic business environment, efficient workflow automation is crucial. Camunda, a powerful open-source Business Process Management (BPM) tool, integrates seamlessly with C# to help automate and optimize business processes. This blog post will guide you through building a simple

Weiterlesen

Understanding the Circuit Breaker Pattern

4. Juni 2024
Johannes Rest
Allgemein

In modern software development, particularly when dealing with microservices or distributed systems, managing failures gracefully is crucial. One robust approach to handle such failures is the Circuit Breaker pattern. This pattern helps prevent cascading failures and enhances the resilience of

Weiterlesen

Understanding the Microservices Pattern

4. Juni 2024
Johannes Rest
Allgemein

In today’s fast-paced software development landscape, building scalable, maintainable, and resilient applications is more critical than ever. One architectural style that has gained immense popularity is the microservices pattern. This blog post aims to provide a comprehensive understanding of microservices,

Weiterlesen

The Current State of ChatGPT Development and Future Prospects

1. Juni 20241. Juni 2024
Johannes Rest
Allgemein

Introduction OpenAI’s ChatGPT has significantly transformed the landscape of artificial intelligence, especially in natural language processing (NLP). Since its inception, ChatGPT has evolved through various iterations, each bringing notable improvements in understanding and generating human-like text. This blog post delves

Weiterlesen

Introducing Microsoft’s Recall System in Windows 11

1. Juni 2024
Johannes Rest
Allgemein

Microsoft’s new Recall system in Windows 11 is an innovative feature designed to enhance productivity and user experience. Acting as an „always-on“ screenshotting time machine, Recall continuously records and indexes user activities across various applications, enabling comprehensive and contextual search

Weiterlesen

Understanding the Difference Between SQL Functions and Stored Procedures in SQL Server and Oracle

1. Juni 20241. Juni 2024
Johannes Rest
Technischer Artikel

When working with relational databases, you often need to use SQL functions and stored procedures. Though they might seem similar, they serve distinct purposes and have unique features. This blog post delves into the differences between SQL functions and stored

Weiterlesen

Understanding RESTful Services: A Comprehensive Guide with Examples in .NET 8 and C#

1. Juni 20241. Juni 2024
Johannes Rest
Technischer Artikel

Introduction to RESTful Services RESTful services are a cornerstone of modern web development, providing a scalable and efficient way to build web APIs. REST, or Representational State Transfer, is an architectural style that uses HTTP requests to access and manipulate

Weiterlesen

Understanding Dependency Injection in .NET 8 with C#

1. Juni 20245. August 2024
Johannes Rest
Technischer Artikel

Dependency Injection (DI) is a design pattern used to implement Inversion of Control (IoC) between classes and their dependencies. It helps in creating loosely coupled, testable, and maintainable applications. In this blog post, we will delve into the concept of

Weiterlesen

Another large language model approach using bigram algorithm

31. Mai 20241. Juni 2024
Johannes Rest
Technischer Artikel

Creating a language model using a Bigram approach involves building a model that predicts the next word in a sequence based on the previous word. Below is a C# example that demonstrates a simple Bigram model: C# Example Using a

Weiterlesen

Demonstration of LLVM using Microsoft dotnet 8

31. Mai 2024
Johannes Rest
Technischer Artikel

To demonstrate how language models like ChatGPT work using .NET 8 and C#, we’ll simulate a simplified version of a language model. We’ll implement a basic neural network and tokenizer to process text and generate responses. This won’t be as

Weiterlesen

Understanding Large Language Models: How They Work and What They Can Do

31. Mai 2024
Johannes Rest
Technischer Artikel

Introduction Large language models (LLMs) like ChatGPT, developed by OpenAI, represent a significant leap forward in artificial intelligence, particularly in the fields of natural language processing (NLP), image processing, and language translation. These models are built using advanced neural networks

Weiterlesen

Understanding Async and Await in .NET 8 with C

30. Mai 202430. Mai 2024
Johannes Rest
Allgemein

Asynchronous programming in C# allows you to write code that doesn’t block the main thread, enhancing the responsiveness of your applications. The keywords async and await make it easier to work with asynchronous code by providing a more intuitive and

Weiterlesen

Building a Flight Booking Application in .NET 8 with ChatGPT-Driven Chat Functionality

30. Mai 2024
Johannes Rest
Technischer Artikel

Introduction In this blog post, we’ll walk through creating a sample flight booking application using .NET 8 and C#. Additionally, we’ll integrate a ChatGPT-driven chat functionality to enhance user experience. We will cover the essentials, from setting up the project

Weiterlesen

Getting started with .NET Aspire

24. April 2024
Johannes Rest
Technischer Artikel

Creating your first application with .NET Aspire can be an exciting journey into the world of cloud-native, distributed applications. .NET Aspire is designed to streamline the development of such applications, providing a set of tools and patterns that help you

Weiterlesen

Exploring Blazor: Building Small Applications in C#

23. April 2024
Johannes Rest
Technischer Artikel

In the ever-evolving landscape of web development, Blazor has emerged as a compelling technology stack, offering developers the ability to build interactive web applications using C# instead of JavaScript. In this blog post, we’ll dive into the process of creating

Weiterlesen

Understanding MVVM Pattern in WPF Development: Bridging the Gap between MVC and MVVM

23. April 202423. April 2024
Johannes Rest
Technischer Artikel

In the realm of software development, the choice of architecture patterns can greatly influence the maintainability, scalability, and testability of an application. When it comes to desktop applications built using Windows Presentation Foundation (WPF), the Model-View-ViewModel (MVVM) pattern has emerged

Weiterlesen

Upgrading from php 8.1 to 8.2 on rocky linux 9

11. April 202411. April 2024
admin
Allgemein

As our upgrade article had a lot of attention, we also would like to document the upgrade process for php from version 8.1 to the supported version 8.2. Please keep in mind that although this is the currently supported version

Weiterlesen

Narrow Escape: The XZ Compression Utility Hack and the Looming Threat to Open-Source Security

5. April 20245. April 2024
Johannes Rest
Allgemein

In the digital age, where information is power and connectivity is king, the security of our systems is paramount. Recently, the world was thrust into a frenzied state of alert when news broke of a potentially catastrophic attempt to breach

Weiterlesen

Using hyprland with ML4W

28. März 202428. März 2024
Johannes Rest
Allgemein

Admittedly, the title of this article is very abstruse. But I would like to take this opportunity to promote a really great project, namely Hyprland under arch linux! We have been using this software on our workstations for some time

Weiterlesen

Building a Kafka Example Application in C# with Microsoft Azure

19. Februar 2024
Johannes Rest
Technischer Artikel

Introduction In our previous blog post, we explored how to create a Kafka example application in C# and using Confluent. Now, let’s take it a step further and host our Kafka solution on Microsoft Azure. Azure provides managed services that

Weiterlesen

Building a Kafka Example Application in C#

19. Februar 2024
Johannes Rest
Technischer Artikel

Introduction In this tutorial, we’ll explore how to develop a C# client application that produces and consumes messages from an Apache Kafka® cluster. Kafka is a powerful distributed streaming platform that allows you to build real-time data pipelines and event-driven

Weiterlesen

Unleashing the Power of the .NET Family for Application Development

11. Januar 20242. Dezember 2024
Johannes Rest
Technischer Artikel

Introduction: In the fast-paced world of software development, choosing the right tools and programming languages is critical for success. Microsoft’s .NET family of tools and programming languages, such as C#, offers an extensive array of benefits, ranging from flexibility and

Weiterlesen

Uncovering the Linux Kernel Development: Process, Key Contributors, Benefits, and Future Outlook

11. Januar 202411. Januar 2024
Johannes Rest
Technischer Artikel

Introduction: The Linux kernel, the heart of the Linux operating system, is an open-source marvel that embodies collaboration, innovation, and constant evolution. In this blog post, we will take a deep dive into the Linux kernel development process, explore the

Weiterlesen

The Future of Red Hat Enterprise Linux Alternatives: Exploring Rocky Linux and AlmaLinux

9. Januar 2024
Johannes Rest
Technischer Artikel

Introduction Red Hat Enterprise Linux (RHEL) has long been a preferred choice for businesses seeking a stable, secure, and feature-rich operating system. However, with recent changes in its commercial offerings and the introduction of CentOS Stream, alternatives like Rocky Linux

Weiterlesen

The New Wave Terminal: Elevating the Command Line Experience on Linux and macOS

4. Januar 2024
Johannes Rest
Technischer Artikel

Introduction The command line interface (CLI) has been a pivotal tool for developers, system administrators, and power users for decades. Despite its powerful capabilities, the traditional terminal emulator lacks certain features and can appear bland. However, a new wave of

Weiterlesen

Beitragsnavigation

Ältere Beiträge
Neuere Beiträge

JR IT Services
© 2025
Präsentiert von WordPress
Theme: Masonic von ThemeGrill