Operating Systems

What is CentOS? Versions & system requirements

What is CentOS?

Finding a suitable operating system that meets your own requirements is usually not very difficult in the private sector. Most of the time, it’s just down to personal taste whether you favour Windows, macOS, or Linux. The search for a system solution for enterprise and server environments is far more difficult and complex. When selecting, factors such as long-term support, security, and cost play...

UEFI - Unified Extensible Firmware Interface

UEFI: a powerful interface for booting computers

New computers using Windows 10 today usually boot with a special interface. The Unified Extensible Firmware Interface (UEFI) provides new functions and options for administrators and users. To better understand and get the most out of this advanced boot technology, you will need to become familiar with the basics of UEFI.

Server failure – what to do?

Server failure: risks, consequences, countermeasures

Server failures can be devastating for businesses, especially if central business areas are controlled by IT systems since the longer the server is down, the costlier is it for the company. This can result in loss of sales and in the worst case, the loss of business or customer data. Here we demonstrate the internal and external sources of danger that can lead to server failure, explain the...

Jailbreak (iOS)

Jailbreak: What is involved in advanced user access to iOS devices?

When Apple released the first iPhone in 2007, the iPhone Dev Team group published the first jailbreak for the phone’s operating system iOS in the same year. Through the years, similar workarounds have been released for various follow-up models and other Apple devices to access the blocked administrator rights. What exactly does this involve? What are the advantages and disadvantages of an iPhone...

XAMPP tutorial: create your own local test server

XAMPP tutorial: installation and first steps

The software packet XAMPP is a collection of popular applications like the web server Apache, a leading database management system (either MySQL or MariaDB), the scripting languages PHP and Perl, and more – all together in a compact test server. Our XAMPP tutorial will take you through the installation and configuration process, with the aid of clear instructions and screenshots, to help you set...

Docker orchestration with Swarm and Compose

Docker: Orchestration of multi-container apps with Swarm and Compose

The container platform Docker offers native functions for the orchestration of containers in physical or virtual clusters. Docker also offers a tool for the deployment of multi-container apps with Compose. Thanks to the native swarm mode, you can scale complex applications by yourself on any number of Docker hosts. We show you how that works and offer comprehensive help in our tutorial for Docker...

Docker tutorial: Installation and first steps

Docker tutorial: Installation and operation of the container platform

The open source container platform Docker is quite exciting to the open source community. As an alternative to hardware virtualizsation based on virtual machines, Docker has made the use of software containers acceptable outside of the Linux universe. In our tutorial for beginners, we break down the Docker trend from the ground up. With these clear, step-by-step instructions, learn how to install...

How to create a website on Mac devices

Creating a website on your Mac–it’s all about the software

Whether you’re a dab hand or a total novice, web designers are spoilt for choice when it comes to creating their web presence. Even with minimal knowledge of HTML and JavaScript, creating websites on Mac computers can be a simple process; you just need a web editor and a great idea. It’s also easier than ever to realise more complex projects thanks to a wide range of user-friendly, professional...

Server Containers: virtualisation without emulation

Application containers: the next generation of virtualisation

The introduction of Software containers is widely regarded as a revolution in server administration. The idea of isolating applications in virtual runtime environments is nothing new, but with platforms like Docker, users can enjoy extensive functionality, which facilitates working with server containers. So, what exactly can application containers do?


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