A unique address is needed for a letter to reach the right person by post. It is similar on the internet. The network equivalent of a postal address is an IP address. One of the tasks of the Internet Assigned Numbers Authority (IANA) is to coordinate the worldwide pool of IP addresses, and thereby contributing to an integral part of millions of people’s lives.
For years, a successor to the domain query protocol Whois has been in development. For several reasons the protocol, developed at the same time as the internet predecessor ARPANET, is no longer regarded as modern or up-to-date. But now the Registration Data Access Protocol (RDAP) is being hailed as a promising candidate to fill this gap. But in what way is this Whois alternative different to its...
Internationalized domain names (IDNs) significantly increase the number of potential combinations for domain registrations. With this system, Spanish speakers are finally able to use accents in words and names like México or Bogotá. Non-Latin characters are also now possible under this mechanism. These profound changes are made possible through a translation process defined in the internet...
Every Windows user knows: No matter which version you use, the popular Microsoft operating system has its bad days. Sometimes these are so serious that the worst possible outcome happens: Windows won't boot anymore. You might think there’s nothing you can do, but don't panic: Boot problems and bluescreens can be solved quickly in most cases.
Microsoft has released a new version of its operating system for servers, and Windows Server 2019 comes with improvements over the previous version. More security, more functionality, easier usability, more support for Azure, Kubernetes and Linux – Windows Server 2019 has exciting new features in store. What specifically are these changes?
Hyperlinks, links from one website to another, are one of the basic elements of the world wide web – the world’s most popular and widely used hypertext system. Hyperlinks are primarily used to navigate the net. But search engine providers use a network of cross-referencing links to determine who links to whom. Hyperlinks are interpreted as recommendations. If a trustworthy website links to another...
What is a domain? Despite this word being mentioned so frequently, it’s often unclear what the functions and structures of domains are. Knowing the hierarchical structure of the Domain Name System (DNS) is fundamental for anyone working in IT or in any online industry. We explain the difference between top-level, second-level, and third-level domains, and how you can benefit from subdomains that...
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 a big step in the recent trend towards emphasizing user safety on the internet, a not entirely selfless strategy from Google. In this guide, we will explain what changes will be made, why they are happening, and how you can prepare your website...
Do you want your data to reach just one recipient? Then send a unicast. Whether it is IPv4 or IPv6, unicasts find the right target. Accessing websites, sending e-mails, file transfers all use this form of addressing. But what is technically behind it, and how do unicast and multicast differ?
Waterfall methodology is one of the classic procedural models of process management. Its central feature is the structured execution of clearly separated project phases. The waterfall model is mainly used in software development, where it still holds its own against more flexible models. We present the waterfall model, and its application possibilities, and explain where its limits lie in the area...
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