Firewalls – The OSI Model

Source: Freepik
Welcome to the third and final part of our blog series on firewalls! In the first post we looked at the role of firewalls, and in the second we looked at the types of firewalls. In this post, we take a look at the OSI model (Open Systems Interconnection Model) and the different levels at which firewalls can operate.
Halloween: The Nightmares of Cyber Security

Source: Freepik
Fear. A feeling that probably all of us are familiar with. Especially around Halloween, the potential for scares increases. Be it the fear of disguised, made-up figures or even the worry that your sensitive data will fall into the hands of unauthorized persons. Perhaps it’s no coincidence that October of all months is IT Security Month? In this article, we take a look at a few “IT horror stories”, how you can protect yourself from them and share some interesting figures.
CLAIX-2023: A Milestone for Research
October 23, 2024 marks a significant day for us: It was with great joy that we inaugurated our High Performance Computer CLAIX-2023! This modern system marks a significant advance for High Performance Computing and is available to researchers at RWTH and all German universities.
Email Security – Evaluation and Application of the SPF Policy
In this post of our email security series, we would like to inform you about an upcoming tightening of the SPF policy that will apply to RWTH Aachen University as of December 5, 2024. The change will prevent RWTH email addresses from being used as sender addresses by mail servers outside of RWTH Aachen University in the future. This will further increase email security at our university. Please note that this article is mainly intended for mail administrators of RWTH institutions. (*)
Women in IT: FEMTEC Career-Building Program

Source: FEMTEC
Welcome to the third post in our blog series about women in IT. In the first post, we looked at the challenges women face in the tech industry and how they successfully overcome them. The second post was dedicated to the success stories of historical and modern women who have made significant contributions to the IT field. Today we present the FEMTEC Career-Building Program, which prepares female STEM students at RWTH Aachen University for challenging careers in business and science.
Omnichannel Telephony: Bilingualism

Source: Freepik
After around three successful years with our omnichannel system, we are taking the next step: in order to meet the modern requirements of an international university, we are making our telephone system bilingual to make communication more efficient and user-friendly. But what exactly does that mean? And what is behind our omnichannel system?
IT Center Satisfaction Survey 2024 – Your Opinion Counts!

Source: Freepik
This week our IT Center Satisfaction Survey 2024 started. This survey is aimed at all people who use the services of the IT Center.
In order to continuously improve the quality of services and support through our various communication channels, we conduct a satisfaction survey every year. The survey is anonymous.
Basics at RWTH: E-Mail

Source: Freepik
As part of our blog series “Basics at RWTH”, today we are introducing you to the RWTH e-mail service, which is essential for your daily communication in everyday university life. We have compiled the most important information for you so that you can get started quickly and easily with your e-mail inbox – if you haven’t already done so.
Types of Firewalls

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.





