Operating Systems

Hostname
All you need to know: what is a hostname?
  • Technical matters

A computer’s unique name on a network is the hostname, site name or computer name. The hostname is part of the fully qualified domain name, which can be used (for example) to find and access websites on the internet. Here you’ll learn what a hostname looks like, and we’ll show you various ways to determine the hostname using an IP address or how to change it.

All you need to know: what is a hostname?
Make a bootable USB drive
Make a bootable USB drive and save your computer
  • Know-how

Optical installation media are yesterday’s news. A bootable USB drive is not only faster and more practical than a CD-ROM, it can also do a lot more: For example, create a portable operating system with which you can use Windows as well as Linux computers. The most important function, though, is the ability to boot and repair a PC following a serious system problem. To make such a bootable USB...

Make a bootable USB drive and save your computer
Docker orchestration with Swarm and Compose
Docker: Orchestration of multi-container apps with Swarm and Compose
  • Know-how

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: Orchestration of multi-container apps with Swarm and Compose
How to create a website on Mac devices
Creating a website on your Mac–it’s all about the software
  • Website creation

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 realize more complex projects thanks to a wide range of user-friendly, professional...

Creating a website on your Mac–it’s all about the software
Module tests in software development
Software quality assurance: module tests
  • Web development

Module tests are one of the most effective methods of identifying as many errors in the source code as possible early on in the software development process. The special feature: the smallest isolatable components of a program are placed in a neutral test environment. If errors appear, it’s obvious they are occurring in the module being tested, which makes them easy to correct.

Software quality assurance: module tests
What's a hackathon?
Hackathons: intense and innovative programming retreats
  • Web development

What is a hackathon, and what happens at one? Very little sleep, innovative ideas, and a lot of hard work! In addition to a definition of a hackathon, and an explanation of how it works, we also provide a few examples of hackathons in the US, as well as some of the amazing projects that came from them, such as mental health apps, and organ transplant aides.

Hackathons: intense and innovative programming retreats
Archiving and Compression Using Linux
Archive and compress data using Linux
  • Tools

Archiving and compressing files contributes positively to the security and stability of a system. For Linux and other unix-like systems, there are countless free programs with which you can create unaltered or compressed archive files over the command line and extract them as well. One of the classic packing programs for Linux is tar. Today, the tool still counts as one of the leading archiving...

Archive and compress data using Linux