Schlagwort: ‘WLAN’
New Root Certificate for eduroam & RWTH-Institutes
Source: Own Illustration
On September 9, 2025, the root certificate for the RADIUS server of eduroam and RWTH-institutes will be changed to the new DFN Community Root CA 2022 as part of a regular security measure. From this point on, only the new certificate will work – it will no longer be possible to use the old one. To ensure that you remain connected securely and without problems after September 9, you should update your WLAN configuration in good time.
How to Set up a Secure Home Network
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.
IT Fairytale Hour – Part 2
Source: Freepik
Today we continue with our series, “All about the myths in the world of IT”.
If you missed the first part of the myths, feel free to check out our last post.
“The full moon causes sleepless nights” – a myth we all know. Experts have long since proven that the moon does not have magical powers. The brightness releases less melatonin in the brain, which helps us fall asleep.
So it’s worth taking another close look at widespread half-truths.
In the world of IT, there are myths that we can get to the bottom of together.
Today, it’s all about IT security and what you should know about it.
WiFi News – Part 3: New Root, Old WiFi
Source: Freepik
On May 23, 2023, the server certificate of our authentication server “radius.rz.rwth-aachen.de” had expired. For that reason a new certificate was implemented in the system. In the first post of this blog series we informed you about this.
Now a larger change is coming up: In the future, the new certification instance GÉANT/TCS will be used and replace DFN-PKI Global. As a consequence a new Radius certificate and certification chain will be used. This migration will take place on August 1, 2023.
Eduroam will be affected with regard to registration and configuration. The exact background and what you have to do, to continue using eduroam, we will explain in the following blog post. Read the rest of this entry »
WLAN News – Part 2: eduroam and certificates
Source: Freepik
The Wi-Fi network eduroam is available on the entire campus of the RWTH Aachen University. If you have already configured eduroam on your mobile devices and chosen an automatic connection, your devices will connect to eduroam in the background. This happens as soon as your devices detect a network with the name eduroam in the vicinity.
Behind a secure connection to eduroam lie certificate structures that guarantee this security. But how exactly do these processes work? In the following blog post, we hope to provide answers to these and other questions.
WiFi News – Part 1: New Certificate for the RADIUS Server
Source: Freepik
For the expiration of the server certificate of our authentication server radius.rz.rwth-aachen.de the certificate on the system will be exchanged on May 23, 2023. This has already been announced in the status message portal.
You will be affected by these changes the next time you log in to eduroam. What you have to do to continue using the WiFi, we explain in the following blog post.
New SSID – RWTH institutes – in the WLAN
RWTH Aachen University offers wireless data communication (via WLAN) to all WLAN enabled devices throughout the university. This WLAN service is offered by WLAN access points.
Source: Freepik
These access points broadcast one or more SSID’s, which the devices can connect with and thus get internet access. The term SSID stands for Service Set Identifier and is simply the name of a WLAN network. RWTH offers many SSID’s such as:
- eduroam for students, employees and guests of participating institutes
- RWTH-guests for quests without an eduroam identification
- RWTH-devices for IoT devices, e.g. measuring instruments and sensors
