How to set up Keycloak with Docker

In this post I will show you how to run Keycloak inside a Docker container. As you might know Keycloak Is a great Open Source tool for identity and access management. You can use it to secure your web application. One main feature ist to secure your application with a login and registration form or… How to set up Keycloak with Docker weiterlesen

Fixing Firefox connection problems after enabling DoH

The latest version of Firefox (96.0 and 95.02) has a bug when you enable DoH(DNS over HTTPS). It seems that it gets stuck at in the ‚SocketThread‘. In this post, i will show you how to fix your Firefox connection problems after enabling DoH.

The Singleton Design Pattern and how to implement it in Java

The Singletone design pattern is one of many famous design pattern used in software developent.
Sometimes you need to ensure that a class in your java project only has one single instance in your whole program or application. The singleton pattern is suitable for this purpose. In this post, i will show you how to implement it and describe which value it offers you in your program.

The Solid Design Principles

The SOLID principles are design principles that are used in software development. The term was coined by Robert C. Martin and describes five design principles that specify how functions and data structures are arranged in classes and how these classes should be interconnected. The goal of SOLID is the production of software, which tolerates modifications,… The Solid Design Principles weiterlesen