C&CZ is the IT department for research and education of the Faculty of Science of Radboud University.


Feel free to contact us about any IT related problem, but specifically about science accounts and science services like e-mail, data storage, gitlab, VPN, ssh and surveys, but also about laptops, desktops, linux login servers, compute clusters, software licenses, poster or 3d printing. Also contact us for questions about security, privacy or data-leaks.


For questions about printing, phones, RU accounts, MS365, RU website, network connections, please contact the RU Helpdesk.

New face at C&CZ   news

C&CZ is pleased that the recent vacancy for a systems developer / sysadmin has been filled. Since March, Arnoud Thörig works at C&CZ. Arnoud studied Mathematics at the Faculty of Science and has many years of experience as a Systems and DevOps Engineer.

March 1, 2024 · updated March 1, 2024 ·  Peter

Lilo: Per User Memory Limit   news

The Lilo servers are Linux servers for general use, with the caveat: You can use it just as you like, as long as you do not cause problems for other users. To help enforce this we are enabling a memory limit of 25% per user. This means a single user on lilo[78] can allocate up to 16 GiB.

February 28, 2024 · updated February 28, 2024 ·  Miek

Use eduVPN instead of Science VPNs VPNsec/OpenVPN   news

For RU students and employees, the SURF service eduVPN has many advantages over the older Science VPNs: VPNsec and OpenVPN. It’s very easy to install and use eduVPN on Windows/macOS/Android/iOS/Linux and you have access to all Science services that are also available through the Science VPNsec/OpenVPN. We list it on our VPN page as the primary VPN to use. We advise users of the Science VPNs to move over to eduVPN....

February 23, 2024 · updated February 23, 2024 ·  Peter

New version of Mathematica 14.0.0   news

A new version of Mathematica (14.0.0) has been installed on all C&CZ managed Linux systems, older versions can still be found in /vol/mathematica. When connected wired or wireless on campus or through VPN, the software for Windows, Linux and macOS can be found on the C&CZ Install disc. During the installation you must specify: License server: mathematica.science.ru.nl License: L4601-6478 According to the Mathematica Quick Revision History: “Version 14.0 continues to expand the scope and breadth of our computational coverage while streamlining and polishing existing areas....

February 16, 2024 · updated February 22, 2024 ·  Peter

SageMath on loginservers and JupyterHub, Digital Security and Math clusternodes   news

The free open-source mathematics software system SageMath version 9.5 has been installed on Science loginservers and JupyterHub, Digital Security and Math clusternodes. The mission of SageMath is to create viable free open source alternative to Magma, Maple, Mathematica and Matlab. SageMath builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more. Access their combined power through a common, Python-based language or directly via interfaces or wrappers....

February 16, 2024 · updated February 22, 2024 ·  Peter

Large response survey services provided by C&CZ   news

We are pleased that we received 330 completed surveys. Many of these were very positive. Some contained suggestions for improvements or new services. We’ll analyze the results further in the next months.

January 23, 2024 · updated February 22, 2024 ·  Peter

Short survey regarding the services provided by C&CZ   news

We would like to draw your attention to a short survey regarding the services provided by C&CZ. We would really appreciate it if you would take a few minutes to provide us with feedback. Based on the results, we will determine how we can further improve our services for the faculty in the coming years. Thank you very much in advance for your response! Note The survey has now been closed....

December 13, 2023 · updated February 22, 2024 ·  Peter

Policy changes for outgoing email (SMTP)   news

To counteract email spoofing, the following changes are forthcoming, affecting the way email can be sent. Science SMTP authentication requirement from specific networks Currently, it is possible to send emails via SMTP without authentication when connected to the campus network. For user devices, it has always been recommended to use authenticated SMTP. Starting from January 8, 2024, C&CZ will no longer allow unauthenticated SMTP from user networks. The first networks for which this policy will be enforced will be Eduroam and VPN....

December 12, 2023 · updated February 22, 2024 ·  Peter

Maple license continued for 2 concurrent users   news

The license of Maple has been continued in 2024 as a 2-user license. All FNWI employees and students are allowed to use Maple. If you want to use Maple, please contact C&CZ.

December 1, 2023 · updated February 22, 2024 ·  Peter

New A0 poster printer, twice as fast   news

Because the old poster printer broke down, we ordered an HP Designjet Z6 44 inch postscript. The new printer is twice as fast, so the speed of service will be even better. See the poster printer page for all details.

November 21, 2023 · updated February 22, 2024 ·  Peter