Protocols

What is port scanning?SP-PhotoShutterstock

What is port scanning?

  • Know-how

It’s easy to lose track of all the different programs that are responsible for inbound and outbound data traffic.

Networks hosting a large number of computer systems that are constantly communicating with online services often require technical backup. High-performance tools check the activities of various applications or computers and can close existing security gaps. Using port scanners is one…

What is port scanning?
How to clear cookies step by stepRawpixel.comShutterstock

How to clear cookies step by step

  • Website creation

Some cookies can be very helpful – they let you sleep on those impulse purchases and keep them from disappearing out of your shopping cart, or log into social media sites with just one click. But not all cookies make surfing the web easier, and some may even forward unwanted information to third parties. It is a good idea to learn how to clear cookies, and this guide will show you how to clear…

How to clear cookies step by step
How to fix Error 401 UnauthorizedRoland IJdemaShutterstock

How to fix Error 401 Unauthorized

  • Technical matters

You’re surfing around on the internet, but instead of getting the desired content you only receive an error message: annoying or even downright frustrating. Especially if you don’t exactly know what the status is supposed to mean. How are you expected to solve the problem, if you don’t know what’s causing it? This also goes for the error 401. Here we explain what the error means and what you can…

How to fix Error 401 Unauthorized
How to fix Error HTTP 504 (Gateway Timeout)windwheelShutterstock

How to fix Error HTTP 504 (Gateway Timeout)

  • Technical matters

If the error message ‘HTTP 504 Gateway Timeout’ appears when you attempt to open a website, it means that the allowed time for responding to browser queries has been exceeded. A lot of the time the culprit is not the web server itself, but instead some other component of the server, i.e. a gateway, which is integral to the path of communication. What does 504 gateway timeout mean? How can you fix…

How to fix Error HTTP 504 (Gateway Timeout)
Headless CMS

Headless CMS

  • CMS

If you want to juggle more than one channel with your content management system, you’ll quickly reach the limits. A classic CMS offers many simplifications, but at the same time is limited with its design options. For this reason, content creators sometimes rely on another solution: a headless CMS. This separates the frontend from the backend so that different websites and mobile apps can be…

Headless CMS
How to fix HTTP 500 internal server error?

How to fix HTTP 500 internal server error?

  • Technical matters

Error messages when surfing the net are a nuisance for everyone involved, but especially for those who have to find out what the problem is. The search for a solution can be particularly tedious if the status code message barely provides any information on the source of the error. The HTTP error 500 (“Internal Server Error”) is a collective status code. We give you tips on where errors could have…

How to fix HTTP 500 internal server error?
OSI ModelramcreationsShutterstock

OSI Model

  • Know-how

Those working with network technology are bound to encounter the ISO-OSI model sooner or later. This system subdivides communication between computer systems into seven different layers. Each of these layers is assigned a certain task. With the help of this layer model, subareas of abstract processes are able to be descriptively explained.

OSI Model
RARP (Reverse Address Resolution Protocol)

RARP (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 (Reverse Address Resolution Protocol)
Network News Transfer Protocol (NNTP)

Network News Transfer Protocol (NNTP)

  • Know-how

As a global computer network, the Internet provides the perfect foundation for gathering and distributing information. The World Wide Web, the most well-known Internet service, convincingly proves this fact. The older Usenet benefits from the Internet’s global network as well. In order to be able to transfer data, it relies on the unique NNTP, which is the focus of this article.

Network News Transfer Protocol (NNTP)
MultiProtocol Label Switching (MPLS)

MultiProtocol Label Switching (MPLS)

  • Know-how

Speed and reliability play an important role for data transfer in networks. They reflect the quality of the connection, which is why providers do everything they can to guarantee the agreed services. A method primarily used in virtual private networks is the so-called multiprotocol label switching (MPLS).

MultiProtocol Label Switching (MPLS)
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