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IT Center Blog

Schlagwort: ‘Netzwerksicherheit’

How to Set up a Secure Home Network

May 14th, 2025 | by
Illustration of a laptop displaying a login screen, surrounded by icons for internet, Wi-Fi, data sharing, media, and a security shield with a padlock.

Source: Freepik

More and more devices in our everyday lives are connected to the internet – from home offices and online banking to smart thermostats and surveillance cameras. And all these digital helpers access a common system: the home network. It forms the heart of our digital infrastructure at home. In this article, we explain what a home network is, what risks it poses, and how you can effectively protect it from attacks.

 

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DNS at RWTH Aachen University Part 1:
History & Function of the DNS

May 5th, 2025 | by
A globe with location markers connected by lines, next to it a laptop with a security lock symbol on the screen, in the background a cityscape with a WLAN symbol and flying paper airplanes.

Source: Freepik

The Domain Name System (DNS) makes the Internet usable by translating readable names such as rwth-aachen.de into IP addresses. It originated from simple lists of names and developed into a globally distributed, hierarchical system. Today, it fulfils many more tasks – for example in the areas of e-mail, IT security and network management. The DNS also plays a central role at RWTH Aachen University and is protected by modern technologies such as DNS firewalls. This article provides an overview of the origin, structure and current significance of the DNS.

 

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Types of Firewalls

October 16th, 2024 | by
Firewall

Source: Freepik

In the first part of our blog series, we covered the basics of firewalls: what they are, how they work, and why they are essential for network security. Today, we will take a closer look at the different types of firewalls used in IT-Security.

 

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The Role of Firewalls in Network Security

August 21st, 2024 | by
chart network security

Source: Freepik

In a world that is increasingly characterised by digital connectivity, network security is becoming an essential issue. A fundamental but often misunderstood component of network security is the firewall. Most of you have probably heard the term before. In this blog post, we’ll take a closer look at the role of firewalls, their importance in network security and how they help to prevent threats. Read the rest of this entry »