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.

1329: DDOS on Science mailservers

Our smtp mailservers are under attack. Our configuration limits the number of connections that can be kept open at the same time, this limit is reached and no new connections can be made. Sending e-mail using our mailservers can take a long time or will not work at all. There’s a good chance that your ip address will be blocked after several failed attempts. As a workaround, for use on campus or after starting VPN, you can change your sending mailserver configuration to use smtp1....

May 31, 2023 · updated June 3, 2023 ·  Simon

New computer lab pcs in summer break   news

During the summer break all pcs in the computer labs will be replaced, because they are between four and seven years old. The new pcs will again be dual-boot, with Windows10 22H2 and Ubuntu 22.04. Lecturers who want to test their Linux course software, can do so on the Linux loginserver lilo8, that has Ubuntu 22.04. The new pcs are Dell Optiplex 7400 All-In-One. For employees with pcs with older versions of Ubuntu, this might be a good time to upgrade to Ubuntu 22....

May 16, 2023 · updated May 30, 2023 ·  Peter

Lilo6 turned off   news

The login server lilo6 with Ubuntu 18.04 has been turned off. Login servers are available during the support lifetime of the Linux version we install on them when a new long term support (LTS) version is released. We always provide current OS versions on the login servers, the version installed on our terminal PC’s is also on the login server called lilo.science.ru.nl. When newer LTS versions are available we also install a new login server....

May 8, 2023 · updated May 30, 2023 ·  Simon

C&CZ move to ground floor of Huygens   news

In the week of April 17, C&CZ will to move to the new offices in wing 5 on the ground floor of the Huygens building. The C&CZ helpdesk will still have an entrance on the main street at HG00.051. See also our contact info.

April 11, 2023 · updated May 30, 2023 ·  Peter

C&CZ awayday Tuesday March 28   news

An awayday for the C&CZ department is scheduled for Tuesday March 28. C&CZ can be reached in case of serious disruptions of services.

March 26, 2023 · updated May 30, 2023 ·  Peter

Matlab R2023a available   news

The latest version of Matlab, R2023a, is available for departments that have licenses. The software and license codes can be obtained through a mail to postmaster for those entitled to it. The software can also be found on the install-disc. All C&CZ-managed Linux machines have this version installed, an older version (/opt/matlab-R2022b/bin/matlab) is still available temporarily. The C&CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures....

March 21, 2023 · updated May 30, 2023 ·  Peter

Maple new version Maple2023   news

The latest version of Maple, Maple2023, for Windows/macOS/Linux can be found on the Install network share and has been installed on C&CZ managed Linux computers. License codes can be requested from C&CZ helpdesk or postmaster.

March 16, 2023 · updated May 30, 2023 ·  Peter

Migration of external GitLab users to Science logins with access only to GitLab   news

Starting March 2023, external GitLab users of gitlab.science.ru.nl will be migrated to Science logins that only have access to GitLab. Until now, external GitLab logins were created in GitLab itself, separate from the Science login administration. By migrating the external GitLab users to Science logins with access to GitLab only, the management of these logins is improved. The requester (responsible for the Science login) can manage these logins in DIY....

March 10, 2023 · updated May 30, 2023 ·  Bram

New version of Mathematica (13.2.1)   news

A new version of Mathematica (13.2.1) 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 13.2.1 includes over a hundred bug fixes, feature enhancements, performance improvements and security updates....

February 17, 2023 · updated May 30, 2023 ·  Peter

NI LabVIEW 2022Q3 and higher subscription license   news

There is a new version of LabVIEW from NI.com, version 2022Q3. NI.com communicated that they will move to a subscription model for LabVIEW licencing starting with version 2022Q3. C&CZ manages a FlexNet license server for LabVIEW 2022Q3, with a limited number of licenses and a deadline in April for extension of the license. Earlier versions of LabVIEW work standalone and unlimited in terms of time. The software can be found on the C&CZ Install disc....

February 14, 2023 · updated May 30, 2023 ·  Peter

Unlimited Mathematica license in 2023 for RU staff and students   news

The license for Mathematica has been expanded temporarily to an unlimited campus license for the whole of 2023: all employees and students may use Mathematica unlimitedly in 2023 on the RU network. For home use, one must therefore use a VPN. The software can be found on the C&CZ Install disc. During the installation you must specify: License server: mathematica.science.ru.nl License: L4601-6478 The introductory course “Mathematica Basic Principles: An Introduction” can be taken for free at CANdiensten in Amsterdam....

February 14, 2023 · updated May 30, 2023 ·  Peter