Terminal Servers – the Secret Behind Remote Hosts
Terminal servers: definition, basics, and advantages
  • Know-how

In the days of mainframe computers and the first smaller networks, terminals were a crucial building block for sharing hardware and software resources. It is no coincidence that terminal servers – the central administrative entity of such networks – are in demand decades later, now that applications are to be made available to multiple users.

Terminal servers: definition, basics, and advantages
Debian – the universal system software
Debian: what does this Linux kernel offer?
  • Know-how

Anyone looking to learn about Linux operating systems will come across Debian soon enough. The GNU/Linux distribution was one of the first of its kind and is still one of the most widely used today. Over 1,000 community members work on the Debian project, furthering the development of the collection. But how did Debian become so successful? And what makes this system software so interesting to...

Debian: what does this Linux kernel offer?
What is CentOS? Versions & system requirements
What is CentOS?
  • Know-how

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 favor 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 a...

What is CentOS?
Unix: a history
Unix: the operating system setting new standards
  • Know-how

In the context of open source operating systems, the term “unixoid” is often used, indicating that the software is similar to the Unix system published in 1969. Typical indicators are, for example, the file system, or means and rights available to access the system and its processes. But what exactly is Unix, and who is behind the development of this influential operating system?

Unix: the operating system setting new standards
OpenShift vs. Kubernetes
Big comparison: OpenShift vs. Kubernetes
  • Know-how

Do you want to work with leading-edge container technology, but don’t know which orchestration tool to use? Ease of use versus flexibility, PaaS versus open source, OpenShift versus Kubernetes: both orchestration tools have their advantages. But which is the best fit for your project? We compare Kubernetes with OpenShift to help you make a better decision.

Big comparison: OpenShift vs. Kubernetes
Learn MySQL in simple steps
MySQL tutorial: the comprehensive guide for beginners
  • Know-how

Along with Oracle and Microsoft SQL server, MySQL is one of the most popular management systems for relational databases. Nowadays the software developed by MySQL AB belongs to the product portfolio of the Oracle Corporation and is proprietarily marketed under a dual license. Since 2009, an open source MySQL fork, known as MariaDB, has also been available from the original developers. Here we give...

MySQL tutorial: the comprehensive guide for beginners
Network Time Protocol (NTP)
Network time protocol (NTP): definition and functionality
  • Know-how

Computer systems and applications use time stamps for communication purposes. Synchronous system times are highly important for these so-called temporal signatures to be of any use – especially for systems that exchange information via the internet. A protocol that has provided valuable assistance for decades is the network time protocol (NTP) – here is an introduction to NTP, as well as some...

Network time protocol (NTP): definition and functionality
Fog computing
Fog computing: decentralized approach for IoT clouds
  • Know-how

Traditionally, cloud solutions are designed for central data processing. IoT devices generate data, send it to a central computing platform in the cloud, and await a response. However, with large-scale cloud architectures, such a system inevitably leads to bandwidth problems. For future projects such as connected cities and smart manufacturing, classic cloud computing is a hindrance to growth. The...

Fog computing: decentralized approach for IoT clouds
Edge computing
Edge Computing – Calculating at the edge of the network
  • Know-how

Autonomous cars, intelligent factories and self-regulating supply networks – a dream world for large-scale data-driven projects that will make our lives easier. However, what the cloud model is and how it works is not enough to make these dreams a reality. The challenge of effectively capturing, evaluating and storing mass data requires new data processing concepts. With edge computing, IT...

Edge Computing – Calculating at the edge of the network
Reverse ARP
RARP: The Reverse Address Resolution Protocol
  • Know-how

Out-dated technology can still be interesting. Even though the Reverse Address Resolution Protocol was introduced in 1984, and considered obsolete the following year due to the Bootstrap Protocol, it continued to be used long after. The RARP has not completely disappeared from network technology even today. As the Reverse ARP, this protocol is a counterpart to the Address Resolution Protocol. But...

RARP: The Reverse Address Resolution Protocol