PostgreSQL
PostgreSQL: a closer look at the object-relational database management system
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The PostgreSQL database management system, also known to many as Postgres, has many decades of development behind it. It originally started as a project at Berkeley University in California. Today, the open source database continues to defy solutions from commercial competitors, since the development team is constantly working on its functionality and performance. But what exactly is PostgreSQL?...

PostgreSQL: a closer look at the object-relational database management system
ownCloud alternatives | Which host has the most?
Alternatives to ownCloud: an overview of the best hosts
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When it comes to cloud storage services with synchronization functions, many users see ownCloud as the most reliable option. It is also worth broadening your perspective, as the best alternatives to ownCloud also offer some other interesting features, which cloud storage service enthusiasts should not miss out on. This article is here to help you find the alternative to ownCloud that is right for...

Alternatives to ownCloud: an overview of the best hosts
DNS resolver
What is a DNS resolver?
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DNS resolvers are a core component of the DNS, and therefore one of the cornerstones of the internet. For the most part, however, the resolvers work in secret. The importance of DNS resolvers only becomes apparent when the connection to websites and mail servers breaks down. Our article explains how to proceed and how the technology works in detail.

What is a DNS resolver?
IRC server
IRC server: How to create your own IRC network
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IRC chats are popular today when things call for a quick and easy solution for internal communication. With your own IRC server, you can create the perfect basis for individual IRC structures that are only accessible to authorized persons and are safe from spam and bots. What needs to be considered in terms of hosting, installation, and configuration?

IRC server: How to create your own IRC network
OpenShift alternatives
OpenShift alternatives
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With OpenShift, Red Hat pioneered Kubernetes management solutions. Now, large companies use the software to distribute applications and development environments. But this sort of power comes with huge complexity. Fortunately, a number of exciting (and simplified) OpenShift alternatives exist. Read on to find out more.

OpenShift alternatives
Kubernetes vs. Docker
Kubernetes & Docker: Friend or foe?
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If you’re happy with Docker and are already using the container visualizer, you might have thought about trying Kubernetes. But are these two systems actually rivals? Is it a case of Kubernetes vs. Docker? On the contrary, both work really well together. But the container pioneer now also offers its own tool for orchestration with Docker Swarm. So, which is better?

Kubernetes & Docker: Friend or foe?
Docker images
Docker images
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When learning about Docker platforms, you often come across these terms again and again: Docker container, Docker image, and Dockerfile. It isn’t easy to keep track of these things as the differences between the concepts are very subtle. In our series of guides, we explain how the individual components of the Docker ecosystem relate to one another. In this guide, you will find out what exactly a...

Docker images
Dockerfile
Dockerfile: what is behind the format
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Docker has established itself as the standard for container virtualization. But the multitude of Docker-specific concepts can easily confuse anyone. Docker containers, Docker images and Dockerfiles – how are they related and how are they different? We will go into detail about Dockerfiles and present the most important instructions and their specifics.

Dockerfile: what is behind the format
Raspberry Pi projects
30 Raspberry Pi projects that show the possibilities of the mini computer
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Raspberry Pi is an inexpensive micro-computer that can behave like a standard computer in many respects. The innovative mini device can be used for a wide range of tasks - from setting up an operating system to surfing the web, to using it as a server or a media center. Discover 30 interesting Raspberry Pi projects to try out at home.

30 Raspberry Pi projects that show the possibilities of the mini computer
Raspberry Pi Zero projects
15 impressive Raspberry Pi Zero projects
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There are plenty of interesting Raspberry Pi Zero projects. The even more powerful successor Raspberry Pi Zero 2 W, released in 2021, allows for the development of even more elaborate applications. Read on to find out more about the 15 most exciting Raspberry Pi Zero ideas.

15 impressive Raspberry Pi Zero projects