IT Center Blog

Schlagwort: ‘Zertifikate’

WiFi News – Part 3: New Root, Old WiFi

June 30th, 2023 | by
Router, notepad, and smartphone

Source: Freepik

On May 23, 2023, the server certificate of our authentication server “” 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

June 16th, 2023 | by
Top view of the Wifi icon

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.

Read the rest of this entry »

WiFi News – Part 1: New Certificate for the RADIUS Server

May 17th, 2023 | by
Front view of smartphone and WiFi router

Source: Freepik

For the expiration of the server certificate of our authentication server 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.

Read the rest of this entry »

The IT Center’s IT Security Measures

September 2nd, 2022 | by
Falling dominoes

Source: Freepik

With technological progress and the increasing digitization of processes, the topic of IT security is gaining more and more importance. The risks associated with digitalization affect us all. Improper behavior and naivety in dealing with information technology can have serious, costly consequences. That is why the security awareness of users in particular should be actively encouraged. IT security also plays a major role at the IT Center. In this blog, for example, we repeatedly draw your attention to security risks and explain how you can be more aware when using information technology. In this post, we would like to give you an overview of the IT security measures that have been implemented at the IT Center, for both yours and our protection. Read the rest of this entry »