Correcting the error “Err_Connection_Timed_Out”

The error message “Err_Connection_Timed_Out” appears frequently on Google Chrome and means that an error has occurred when trying to access a webpage. This is usually caused by the target server taking too long to send a reply, which results in the browser terminating the communication attempt. Find out in our guide what “Err_Connection_Timed_Out” means, what measures you can take to correct the...

Remote access for network storage

Remote access to the network storage

Are you using a NAS system as a home server and want to connect it to the internet? It’s simple to do. We explain how to assign a fixed LAN IP address to your network storage and open the corresponding ports for the desired service in the router firewall. You will also learn how to make your NAS system permanently available under a consistent address despite daily disconnections carried out by the...

Brute force attack: definition and protective measures

Brute force attacks: when passwords are served on a silver platter

Being constantly faced with headlines about stolen passwords, it’s understandable that many users are concerned. Your best bet is to make your passwords as complicated as possible and have them consist of many different types of characters. But even this won’t help if it’s the actual log-in area that isn’t secure enough. Even today, attackers are still successful with the notorious and simple...

What is Internet protocol? – IP definition, etc.

What is Internet Protocol (IP)?

When networking a computer system, protocols play an important role. An example is the Internet protocol, which was published in a first specification in 1981, and is the indispensable basis for the smooth sending and receiving of data packets. But what is behind the RFC standard? And how does the Internet protocol actually work?

CSMA/CD - Carrier Sense Multiple Access / Collision Detection

CSMA/CD: Explanation of the process

Rules must be observed when communicating in a group. This is no different with local networks: CSMA/CD regulates how data packet collisions must be handled in a LAN network. But what happens if several participants attempt to simultaneously carry out a transmission and the information gets lost? Carrier Sense Multiple Access with Collision Detection is an important procedure for smooth network...

Arpanet | Definition & history of the internet predecessor

ARPANET: The internet in its infancy

Before the internet, there was Arpanet. In the beginning, the network was only four computers, yet, it was extremely important for the development of the digital world. During the Cold War, several American scientists and technicians created the cornerstones of a global network. Learn more about the interesting history of Arpanet and the network’s technical achievements.


Localhost (

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 works, and what you can use localhost for.

Set up ownCloud with Raspberry Pi

Creating a Raspberry Pi cloud server with owncloud

With ownCloud software, your Raspberry Pi can be used as a private cloud, performing the same kind of tasks as clouds from major providers such as Google, Amazon, and Dropbox. Cost-effectiveness is just one of many the benefits of creating your own personal cloud; another is the privacy and security of your data. This step-by-step Raspberry Pi cloud tutorial explains how to set up ownCloud.

Web stacks: the basics and examples

Web stack—the software framework for web development

Terms like web stack or web application stack refer to software packages that are used to develop and operate websites and web applications. The most well-known example of this technology, the LAMP stack, has witnessed increasing competition through the likes of JavaScript-based framework bundles, which feature unified programming languages for servers and clients. This gives them a considerable...

How to set up a proxy server in your browser

How to set up a proxy server with Windows

Proxy settings can be established quickly and easily via the operating system’s control panel or browser menu. Discover exactly how to do this with our comprehensive step-by-step introductions for Windows 7, 8, and 10. A faulty proxy configuration can cause connection failures, but there are simple ways to detect the causes and rectify these errors.

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