MOOC – the online education platform

MOOC opens the door to a new era of learning. Massive open online courses give everyone with internet access the opportunity to receive education at...

What is Chrome 68?

Early next month, Chrome 68 will be launched and the new browser will distrust all webpages that do not have HTTPS encryption as “not secure”. This is...

Selling online: the top English-speaking online marketplaces

You want to sell online – but where? If you don’t want to be entirely responsible for your own online shop, then you should offer your products on...

Error 404: what the error page means and how to use it

How often have you stumbled upon a dead end while surfing the net? HTTP 404 error pages are commonplace online to inform users that the requested page isn’t available. As well as being annoying for visitors, they spell bad news for website owners since a dead link may have a bad influence on a website’s search engine ranking. In this article, we’ll demonstrate the importance of 404 pages and...

CMS comparison 2018: The 5 most popular open source systems

  • CMS

Range of functions, ease of use, and technical aspects: If you’re searching for the right content management system (CMS) for your website, many factors must be taken into consideration. Worlds lie between a small blog and a huge company website, but sometimes the same system is behind both. The market for open source solutions of the CMS variety is huge. Among the best known are WordPress, TYPO3,...

The age of the filter bubble – a small world in a large network

Shout out to diversity of opinions! But: how much do you really consider other people’s opinions? If you want to be informed as comprehensively and impartially as possible, it is important to think outside the box. In connection with the term 'filter bubble', the algorithms of Google, Facebook, and other online services have, however, been criticized for some time. The accusation: they create...

The most popular file managers for Windows, Linux, and Mac

A central program on every operating system is the file manager. Whether on Windows, Linux, or macOS – in order to perform file and directory operations conveniently and efficiently, you should rely on a file manager that meets all your requirements. The pre-installed programs like Windows Explorer, Apple’s Finder, or Nautilus on Ubuntu, on the other hand, come with a greatly reduced range of...

Using Raspberry Pi as NAS (network-attached storage)

If you are looking for a central storage system for your own files, you will find the right solution in an NAS system (network attached storage). Since these pre-fabricated boxes are not cheap, using Raspberry Pi as an NAS server host is becoming more and more popular. Combined with USB hard disks or sticks that can be bought anywhere, the minicomputer becomes the perfect storage device for music,...

Localhost (127.0.0.1)

What do you need a localhost for? Sometimes it can be useful to communicate with yourself. This is known as a loopback in network technology: instead of feeding a request to the network – e.g. the internet – you instead keep it within your system, subsequently stimulating a network connection. We will explain how the connection to 127.0.0.1 works, and what you can use localhost for.

What exactly is a website?

What exactly is a website? Who needs one, and what are the different options available for private users and businesses? There are solutions for beginners, which require no programming knowledge. These solutions, especially content management systems, have established themselves in the last few years due to their flexible content management. Professionals, however, still swear by self-written...

What is SaaS (software as a service)? An overview

Software as a service, or SaaS for short, is an increasingly popular option for cloud computing. With SaaS, you use software over the Internet instead of installing it on your hard drive. This offers considerable advantages, especially for companies. As with other cloud services, there are also various concerns about data security. What exactly SaaS is, where the advantages and disadvantages of...

Server Name Indication (SNI): What’s behind the standard?

What is server name identification, really? Encryption technologies play a big role when it comes to surfing on the net. Credit card data and other personal information must not fall into the hands of criminals. For now, TLS is one of the protocols used for this purpose. But it has a disadvantage: it only functions when each IP address only hosts one domain. If multiple virtual services are...

What is the ICMP?

In the background, numerous protocols ensure that communication and data transmission work in computer networks. As the most prominent representative, the Internet Protocol plays a fundamental role. Without its’ various extensions and additions they would be nowhere near as versatile, as is the case in the current protocol. Thanks to the possibilities offered by ICMP protocol error messages and...