Encyclopedia

URL hijacking: What is it really?

URL hijacking

If well-ranked sites suddenly disappear from the search machine index, it can be for a number of different reasons: In one case, the crawler could no longer check the pages in question, or in another case it could have identified duplicate content and removed one of the pages from the search results. Another reason, often unknown to the external developer, is so-called URL hijacking – a process in...

URL: What is a Uniform Resource Locator?

URL: definition and areas of application

The Uniform Resource Locator (short: URL) is one of the basic standard tools of the internet. URLs make it easy to uniquely identify resources on the internet and find their location. Internet users use webpage URLs to surf the web, follow hyperlinks or download files. The concept is based on a human tangible syntax that is automatically read out and interpreted by machines.

SCTP

SCTP (Stream Control Transmission Protocol) – the reliable, message-orientated transport protocol

If two computer systems are to exchange data, they must agree on a common protocol basis. For example, the selected transport protocol determines how the information is to be transferred. One of the more recent representatives of this protocol division is the Stream Control Transmission Protocol (SCTP), which the IETF (Internet Engineering Task Force) published in 2000 as an alternative to known...

What is a rootkit?

What you need to know about rootkits

If you ask the IT community which malware is the most harmful, the answer is typically not viruses, worms or Trojan horses. Experts unanimously agree that rootkits pose much greater problems even to experienced users. The rootkit’s special ability is to conceal other malware and thereby enable cybercriminals to misuse others’ computers for their own criminal activities undetected – such as for bot...

Cryptocurrency

Cryptocurrencies: What’s behind these digital currency systems?

Ever since the unparalleled Bitcoin boom in 2017, which was to be followed by a no less spectacular drop, cryptocurrencies have been both an exciting and controversial topic. The billions of dollars traded by speculators on bitcoins and alternatives such as Ethereum are often not even considered in the providers’ plans – revealing a glimpse of the foundations of cryptocurrencies.

YouTube Sponsorship

YouTube sponsorship: support at the touch of a button

If you want to start a YouTube channel or expand your channel, you should think about monetising it. Recently, YouTube made sponsorship possible: Until now, YouTubers mostly financed themselves through advertising or external donation platforms. Now viewers can directly sponsor a YouTuber via their YouTube page – by means of the “join” button. We explain what this is all about.

RFID (radio frequency identification)

What is RFID?

RFID, technology to identify objects with the help of electromagnetic waves, is revolutionising logistics processes and merchandise management systems. Concepts for automating production processes in the context of the future project Industry 4.0 also rely on RFID systems. We explain to you how radio frequency identification works and what fields of application there are.

IGMP - Internet Group Management Protocol

IGMP: what is behind the Internet Group Management Protocol

Using multicast connections, data streams can be transferred to a large number of clients easily and in such a way that saves resources – provided that the accessing systems are part of the same multicast group. In IPv4 networks, the organisation and management of these groups is based on the Internet Group Management Protocol (IGMP), which was published as early as 1989. What exactly this...

How PHP7 speeds up the internet

PHP7 – shorter loading and access time online

Running dynamic websites that use complex content management systems benefit from quick loading times. This is because they ensure good performance and therefore increase user-friendliness. With the release of PHP7, a new scripting language is now available with which the loading times of your own website can be significantly shortened compared to the older script version.

The basics for modern web development

Modern web development: the basics

The trends driving web development are moving away from static web presences and heading increasingly in the direction of interactive content. Even though languages like HTML and CSS still rule the roost, a growing number of developers prefer the server-side programming language, PHP, for dynamic websites. Client-side script languages like JavaScript make it possible for a site to react to user...


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